Xray T4 2018 User manual

2
BEFORE YOU START
The T4 is a high-competition, high-quality, 1/10-scale touring car intended for
persons aged 16 years and older with previous experience building and operating
RC model racing cars. This is not a toy; it is a precision racing model. This model
racing car is not intended for use by beginners, inexperienced customers, or
by children without direct supervision of a responsible, knowledgeable adult.
If you do not fulfill these requirements, please return the kit in unused and
unassembled form back to the shop where you have purchased it.
Before building and operating your T4, YOU MUST read through all of the
operating instructions and instruction manual and fully understand them to get
the maximum enjoyment and prevent unnecessary damage. Read carefully and
fully understand the instructions before beginning assembly.
Make sure you review this entire manual, download and use set-up book from the
web, and examine all details carefully. If for some reason you decide The T4 is
not what you wanted or expected, do not continue any further. Your hobby dealer
cannot accept your T4 kit for return or exchange after it has been partially or fully
assembled.
Contents of the box may differ from pictures. In line with our policy of continuous
product development, the exact specifications of the kit may vary without prior
notice.
SAFETY PRECAUTIONS
Contains:
LEAD (CAS 7439-92-1) ANTIMONY (CAS 7440-36-0)
WARNING: This product contains a chemical known to the state of California to
cause cancer and birth defects or other reproductive harm.
CAUTION: CANCER HAZARD
Contains lead, a listed carcinogen. Lead is harmful if ingested. Wash thoroughly
after using. DO NOT use product while eating, drinking or using tobacco
products. May cause chronic effects to gastrointestinal tract, CNS, kidneys, and
blood. MAY CAUSE BIRTH DEFECTS.
When building, using and/or operating this model always wear protective
glasses and gloves.
Take appropriate safety precautions prior to operating this model. You are
responsible for this model‘s assembly and safe operation! Please read the
instruction manual before building and operating this model and follow
all safety precautions. Always keep the instruction manual at hand for quick
reference, even after completing the assembly. Use only genuine and original
authentic XRAY parts for maximum performance. Using any third party parts on
this model will void guaranty immediately.
Improper operation may cause personal and/or property damage. XRAY and
its distributors have no control over damage resulting from shipping, improper
construction, or improper usage. XRAY assumes and accepts no responsibility for
personal and/or property damages resulting from the use of improper building
materials, equipment and operations. By purchasing any item produced by XRAY,
the buyer expressly warrants that he/she is in compliance with all applicable
federal, state and local laws and regulation regarding the purchase, ownership
and use of the item. The buyer expressly agrees to indemnify and hold harmless
XRAY for all claims resulting directly or indirectly from the purchase, ownership
or use of the product. By the act of assembling or operating this product, the
user accepts all resulting liability. If the buyer is not prepared to accept this
liability, then he/she should return this kit in new, unassembled, and unused
condition to the place of purchase.
IMPORTANT NOTES – GENERAL
• This product is not suitable for children under 16 years of age without the
direct supervision of a responsible and knowledgeable adult.
• Carefully read all manufacturers warnings and cautions for any parts used in
the construction and use of your model.
• Assemble this kit only in places away from the reach of very small children.
• First-time builders and users should seek advice from people who have
building experience in order to assemble the model correctly and to allow the
model to reach its performance potential.
• Exercise care when using tools and sharp instruments.
• Take care when building, as some parts may have sharp edges.
• Keep small parts out of reach of small children. Children must not be allowed
to put any parts in their mouth, or pull vinyl bag over their head.
• Read and follow instructions supplied with paints and/or cement, if used (not
included in kit).
• Immediately after using your model, do NOT touch equipment on the
model such as the motor and speed controller, because they generate high
temperatures. You may seriously burn yourself seriously touching them.
• Follow the operating instructions for the radio equipment at all times.
• Do not put fingers or any objects inside rotating and moving parts, as this
may cause damage or serious injury as your finger, hair, clothes, etc. may get
caught.
• Be sure that your operating frequency is clear before turning on or running
your model, and never share the same frequency with somebody else at the
same time. Ensure that others are aware of the operating frequency you are
using and when you are using it.
• Use a transmitter designed for ground use with RC cars. Make sure that no
one else is using the same frequency as yours in your operating area. Using
the same frequency at the same time, whether it is driving, flying or sailing,
can cause loss of control of the RC model, resulting in a serious accident.
• Always turn on your transmitter before you turn on the receiver in the car.
Always turn off the receiver before turning your transmitter off.
• Keep the wheels of the model off the ground when checking the operation of
the radio equipment.
• Disconnect the battery pack before storing your model.
• When learning to operate your model, go to an area that has no obstacles
that can damage your model if your model suffers a collision.
• Remove any sand, mud, dirt, grass or water before putting your model away.
• If the model behaves strangely, immediately stop the model, check and clear
the problem.
• To prevent any serious personal injury and/or damage to property, be
responsible when operating all remote controlled models.
• The model car is not intended for use on public places and roads or areas where
its operation can conflict with or disrupt pedestrian or vehicular traffic.
• Because the model car is controlled by radio, it is subject to radio interference
from many sources that are beyond your control. Since radio interference can
cause momentary loss of control, always allow a safety margin in all directions
around the model in order to prevent collisions.
• Do not use your model:
- Near real cars, animals, or people that are unaware that an RC car is being
driven.
- In places where children and people gather
- In residential districts and parks
- In limited indoor spaces
- In wet conditions
- In the street
- In areas where loud noises can disturb others, such as hospitals and
residential areas.
- At night or anytime your line of sight to the model may be obstructed or
impaired in any way.
To prevent any serious personal injury and/or damage to property, please be
responsible when operating all remote controlled models.
Failure to follow these instructions will be considered as abuse and/or neglect.
CUSTOMER SUPPORT
XRAY Europe
K Vystavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
We have made every effort to make these instructions as easy to understand as possible.
However, if you have any difficulties, problems, or questions, please do not hesitate to
contact the XRAY support team at [e-mail]. Also, please visit our Web site
at www.teamxray.com to find the latest updates, set-up information, option parts, and
many other goodies. We pride ourselves on taking excellent care of our customers.
You can join thousands of XRAY fans and enthusiasts in our online community at:
www.teamxray.com
XRAY USA
RC America, 2030 Century Center Blvd #15
Irving, TX 75062
USA
Phone: [phone]
Fax: [phone]
E-mail: [email protected]

3
IMPORTANT NOTES – ELECTRICAL
• Insulate any exposed electrical wiring (using heat shrink tubing or electrical
tape) to prevent dangerous short circuits. Take maximum care in wiring,
connecting and insulating cables. Make sure cables are always connected
securely. Check connectors for if they become loose. And if so, reconnect
them securely. Never use RC models with damaged wires. A damaged wire
is extremely dangerous, and can cause short-circuits resulting in fire. Please
have wires repaired at your local hobby shop.
• Low battery power will result in loss of control. Loss of control can occur due to
a weak battery in either the transmitter or the receiver. Weak running battery
may also result in an out of control car if your car‘s receiver power is supplied
by the running battery. Stop operation immediately if the car starts to slow
down.
• When not using RC model, always disconnect and remove battery.
• Do not disassemble battery or cut battery cables. If the running battery short-
circuits, approximately 300W of electricity can be discharged, leading to fire
or burns. Never disassemble battery or cut battery cables.
• Use a recommended charger for the receiver and transmitter batteries
and follow the instructions correctly. Over-charging, incorrect charging, or
using inferior chargers can cause the batteries to become dangerously hot.
Recharge battery when necessary. Continual recharging may damage battery
and, in the worst case, could build up heat leading to fire. If battery becomes
extremely hot during recharging, please ask your local hobby shop for check
and/or repair and/or replacement.
• Regularly check the charger for potential hazards such as damage to the
cable, plug, casing or other defects. Ensure that any damage is rectified
before using the charger again. Modifying the charger may cause short-circuit
or overcharging leading to a serious accident. Therefore do not modify the
charger.
• Always unplug charger when recharging is finished.
• Do not recharge battery while battery is still warm. After use, battery retains
heat. Wait until it cools down before charging.
• Do not allow any metal part to short circuit the receiver batteries or other
electrical/electronic device on the model.
• Immediately stop running if your RC model gets wet as may cause short circuit.
• Please dispose of batteries responsibly. Never put batteries into fire.
WARRANTY
XRAY guarantees this model kit to be free from defects in both material and
workmanship within 30 days of purchase. The total monetary value under
warranty will in no case exceed the cost of the original kit purchased. This
warranty does not cover any components damaged by use or modification or
as a result of wear. Part or parts missing from this kit must be reported within
30 days of purchase. No part or parts will be sent under warranty without proof
of purchase. Should you find a defective or missing part, contact the local
distributor. Service and customer support will be provided through local hobby
store where you have purchased the kit, therefore make sure to purchase any
XRAY products at your local hobby store. This model racing car is considered
to be a high-performance racing vehicle. As such this vehicle will be used in
an extreme range of conditions and situations, all which may cause premature
wear or failure of any component. XRAY has no control over usage of vehicles
once they leave the dealer, therefore XRAY can only offer warranty against all
manufacturer‘s defects in materials, workmanship, and assembly at point of
sale and before use. No warranties are expressed or implied that cover damage
caused by what is considered normal use, or cover or imply how long any
model cars‘ components or electronic components will last before requiring
replacement.
Due to the high performance level of this model car you will need to periodically
maintain and replace consumable components. Any and all warranty coverage
will not cover replacement of any part or component damaged by neglect,
abuse, or improper or unreasonable use. This includes but is not limited to
damage from crashing, chemical and/or water damage, excessive moisture,
improper or no maintenance, or user modifications which compromise the
integrity of components. Warranty will not cover components that are considered
consumable on RC vehicles. XRAY does not pay nor refund shipping on any
component sent to XRAY or its distributors for warranty. XRAY reserves the right
to make the final determination of the warranty status of any component or part.
Limitations of Liability
XRAY makes no other warranties expressed or implied. XRAY shall not be liable
for any loss, injury or damages, whether direct, indirect, special, incidental, or
consequential, arising from the use, misuse, or abuse of this product and/or any
product or accessory required to operate this product. In no case shall XRAY‘s
liability excess the monetary value of this product.
Take adequate safety precautions prior to operating this model. You
are responsible for this model’s assembly and safe operation.
Disregard of the any of the above cautions may lead to accidents,
personal injury, or property damage. XRAY MODEL RACING CARS
assumes no responsibility for any injury, damage, or misuse of this
product during assembly or operation, nor any addictions that may
arise from the use of this product.
All rights reserved.
QUALITY CERTIFICATE
XRAY MODEL RACING CARS uses only the highest quality materials, the best
compounds for molded parts and the most sophisticated manufacturing processes
of TQM (Total Quality Management). We guarantee that all parts of a newly-
purchased kit are manufactured with the highest regard to quality. However, due
to the many factors inherent in model racecar competition, we cannot guarantee
any parts once you start racing the car. Products which have been worn out,
abused, neglected or improperly operated will not be covered under warranty.
We wish you enjoyment of this high-quality and high-performance RC car and
wish you best success on the track!
In line with our policy of continuous product development, the exact specifications of the kit may
vary. In the unlikely event of any problems with your new kit, you should contact the model shop
where you purchased it, quoting the part number.
We do reserve all rights to change any specification without prior notice. All rights reserved.
R/C & BUILDING TIPS
• Make sure all fasteners are properly tightened. Check them periodically.
• Make sure that chassis screws do not protrude from the chassis.
• For the best performance, it is very important that great care is taken to ensure
the free movement of all parts.
• Clean all ball-bearings so they move very easily and freely.
• Tap or pre-thread the plastic parts when threading screws.
• Self-tapping screws cut threads into the parts when being tightened. Do not use
excessive force when tightening the self-tapping screws because you may strip
out the thread in the plastic. We recommended you stop tightening a screw
when you feel some resistance.
• Ask your local hobby shop for any advice.
Please support your local hobby shop. We at XRAY Model Racing Cars support
all local hobby dealers. Therefore we ask you, if at all possible, to purchase
XRAY products at your hobby dealer and give them your support like we do. If
you have difficulty finding XRAY products, please check out www.teamxray.com
to get advice, or contact us via email at [e-mail], or contact the XRAY
distributor in your country.

4
NOT INCLUDED
To ensure that you always have access to the most up-to-date version
of the XRAY Set-up Book, XRAY will now be offering only the digital
online version on our website www.teamxray.com. By offering this online
version instead of including a hardcopy printed version in kits, you will
always be assured of having the most current updated version.
XRAY offers wide range of optional tuning parts which are listed in tables
like these. Please refer to the exploded view of each main section to
verify which part is included in the kit while all other parts are available
only as an optional part and must be purchased separately.
TOOLS REQUIRED
Side Cutters
(HUDY #189010)
Turnbuckle Wrench
4mm (HUDY #181040)
Reamer
(HUDY #107600) or
(HUDY #107601)
Combination Pliers
(HUDY #189020)
HUDY TOOLS:
Scissors
(HUDY #188990)
4.0 mm
Socket: 5.5mm Socket: 7.0mmAllen: 1.5mm Allen: 2.0mm Allen: 3.0mmAllen: 2.5mm
Pocket Hobby Knife
(HUDY #188981)
RC Shock-Plier Uni Tool
(HUDY #183011)
Arm Reamer 3.0mm
SYMBOLS USED
L=R
2x
CA
OIL
Part bags used Assemble left and
right sides the
same way
Assemble in the
specified order
Pay attention
here
Assemble as many
times as specified
(here twice)
Apply CA glue
EQUIPMENT REQUIRED
ITEMS INCLUDED
Apply oil
Optional
parts
Premium Silicone Oil
400cSt (HUDY #106340)
400cSt
3000cSt
Premium Silicone Oil
3000cSt (HUDY #106430)
TL
05
Tighten screw
gently
Completed
assembly
Detail view
Apply thread
lock
Apply greaseScale Ensure smooth
non-binding
movement
Graphite Grease
(HUDY #106210)
Follow Set-up Book
FRONT & REAR AXLES
SAMPLE OF
OPTIONAL PARTS
#30XXXX OPTION 1
#30XXXX OPTION 2
#30XXXX OPTION 3
1:1
DETAIL
Pinion Gear and Setscrew
Transmitter Steering ServoReceiver Bearing Oil
(HUDY #106230) Speed Controller
Electric Motor &
Lexan™ Paint Battery Charger Wheels & Tires & Inserts
LiPo Battery190mm Bodyshell Fibre Tape
(HUDY #107870)
Double-sided Tape
(HUDY #107875)

5
CA
At the beginning of each section is an exploded view of the parts to be assembled. There is also a list of all the
parts and part numbers that are related to the assembly of that section.
The part descriptions are color-coded to make it easier for you to identify the source of a part. Here are what
the different colors mean:
Style A - indicates parts that are included in the bag marked for the section.
STYLE B - indicates parts that are included in the box.
STYLE C - indicates parts that are already assembled from previous steps.
CHASSIS PREPARATION
COLOR INDICATIONS
CA
CA
To protect and seal edges of graphite parts, sand edges smooth and then apply CA glue.
Do this for: chassis edges, countersunk holes, and shock towers.
Apply only a bit of CA glue in the countersunk holes.
Apply only a bit of CA glue in the countersunk holes.

6
1. GEAR DIFFERENTIAL & FRONT SOLID AXLE
Use tweezers to
insert pin.
981210
P 2x10
981210
P 2x10
972050
O 5x2
972050
O 5x2
964050
S 5x15x0.3
964050
S 5x15x0.3
➊
➋
➌
➍
➍➍
➎
➎
➊
➋
➌
➍
➎
DETAIL
➎
STEP
STEP DETAIL
30 4900 XRAY GEAR DIFFERENTIAL - SET
30 4910 COMPOSITE GEAR DIFF. CASE & COVER
30 4930 COMPOSITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
30 4970 ALU GEAR DIFF OUTDRIVE ADAPTER - 7075 T6 (2)
30 4980 COMPOSITE GEAR DIFF CROSS PIN
30 4990 DIFF GASKET (4)
30 5105 XRAY MULTI-DIFF T3/T4 LiPo (OPTION)
30 5135 COMPOSITE SOLID AXLE DRIVESHAFT ADAPTERS (2)
30 5188 COMPOSITE SOLID AXLE 38T - SET
90 2310 HEX SCREW SH M3x10 (10)
90 3256 HEX SCREW SFH M2.5x6 (10)
94 1015 HIGH-SPEED BALL-BEARING 10x15x4 RUBBER SEALED (2)
96 4031 WASHER S 3.5x10x0.2 (10)
96 4050 WASHER S 5x15x0.3 (10)
97 1240 SILICONE O-RING 24x0.7 (10)
97 2050 SILICONE O-RING 5x2 (10)
98 1210 PIN 2x10 (10)
GEAR DIFFERENTIAL
➍
NOTE
ORIENTATION
#304971
HUDY SPRING STEEL™ OUTDRIVES
#304971
HUDY SPRING STEEL™ OUTDRIVES
BAG
304970
304910
964050
972050
304990
304910
903256
981210
981210
304970
941015
971240
972050
964031
304980
304930
304930
941015
#305137
STEEL SOLID AXLE DRIVESHAFT ADAPTERS
HUDY SPRING STEEL™
#305136
ALU SOLID DRIVESHAFT ADAPTERS
305188
941015
941015
305135
902310
305135
305188
902310
COMPOSITE SOLID AXLE
CUTAWAY VIEW
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
#304932
GRAPHITE GEAR DIFF BEVEL & SATELLITE GEARS (2+4)
DETAIL
#309002
SET OF CERAMIC BALL-BEARINGS (14)

7
964031
S 3.5x10x0.2
1. GEAR DIFFERENTIAL & FRONT SOLID AXLE
1. GEAR DIFFERENTIAL & FRONT SOLID AXLE
971240
O 24x0.7
After disassembling the gear diff the large O-ring may have an increased size and
may be more difficult to re-install. We recommend either inserting the old O-ring
carefully in the diff cover, or replacing the old O-ring with a new O-ring if the old
one cannot be made to fit properly.
Fill differential up to the top of the diff pin.
DO NOT fill the diff to the top of the housing.
TO ENSURE YOU HAVE THE SAME AMOUNT OF OIL FROM REBUILD TO REBUILD, DO THE FOLLOWING:
NOTE
SOFTER oil increases rear traction, HARDER oil increases on-power steering and
stability. It is important not to use soft oils in high-traction conditions as this would
not increase traction, but would make the car loose as the car would become too
twitchy.
However, if the oil is too soft, it could generate the same effect like the car has no
traction. Therefore it is very important to choose the correct oil very carefully. We
recommend using softer oil first, then try harder oil to better understand the effect
on the car’s behavior at the track. Choose the oil accordingly.
TIPS FOR FRONT DIFFERENTIAL
To increase on-power steering and cornering speed, the gear diff can also be used in the front.
NOTE: If you use the gear diff in the front, we recommend using optional #304971 HUDY
Spring Steel™ outdrives because the stress on the outdrives in the front is much higher
than in the rear.
USE THESE OILS FOR FRONT DIFFERENTIAL
500,000 cSt (HUDY #106650)
1,000,000 cSt (HUDY #106692)
2,000,000 cSt (HUDY #106694)
To make the front differential tighter, you can use cleaning gum instead of oil.
IMPORTANT!
Using cleaning gum instead of oil in the gear differential can lead to gear breakage because
the gears are working under dry conditions.
LOW TRACTION
1000cSt (HUDY #106410)
2000cSt (HUDY #106420)
TIPS FOR DIFFERENTIALS
7.90g 9.40g
#107865
HUDY Ultimate Digital Pocket
Scale 300g±0.01g
INITIAL SETTING
3000cSt
MEDIUM TRACTION
2000cSt (HUDY #106420)
3000cSt (HUDY #106430)
4000cSt (HUDY #106440)
5000cSt (HUDY #106450)
HIGH TRACTION
5000cSt (HUDY #106450)
6000cSt (HUDY #106460)
7000cSt (HUDY #106470)
8000cSt (HUDY #106480)
9000cSt (HUDY #106490)
10000cSt (HUDY #106510)
SUPER-HIGH TRACTION
10000cSt (HUDY #106510)
15000cSt (HUDY #106515)
20000cSt (HUDY #106520)
➊ Put the diff (without oil) on the scale and check the
weight (approximately 7.90g)
➋ Slowly pour oil into the diff and watch the weight. Add 1.5g of oil
into the diff. The approximate weight of the diff including oil is 9.40g.
7.9g + 1.5g = 9.4g
#304932
GRAPHITE GEAR DIFF BEVEL &
SATELLITE GEARS (2+4)

8
COMPOSITE FRONT SOLID AXLE
FRONT & REAR AXLES
1. GEAR DIFFERENTIAL & FRONT SOLID AXLE
902310
SH M3x10
941015
BB 10x15x4
941015
BB 10x15x4
OIL
OIL
OIL
903256
SFH M2.5x6
Tighten the screws equally but do
NOT tighten them completely.
Finish tightening in this order.
➊
➋
➌
➍
NOTE
ORIENTATION
DETAIL
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
#305136
ALU SOLID DRIVESHAFT ADAPTERS
#305137
STEEL SOLID AXLE DRIVESHAFT ADAPTERS
HUDY SPRING STEEL™
OIL
CUTAWAY VIEW

9
305188
940510
965050
304900
903306
903310
903306
903306
903304
303003-O
302034-O
303001-O
902306
902306
902306
305577
303085
981212
305784
940510
301145
903306
303002-O
902306
902306
902306
305446
960030
305432
302034-O
302760-O
302761-O
302761-O
302760-O
302034-O
302084
302062
302062
305521-K
902304
902306
302062
305577
965050
302034-O
2. CENTRAL TRANSMISSION
BAG
02
30 2034-O T4 ALU UPPER CLAMP WITH 5 ADJ. ROLL-CENTERS (L+R) - ORANGE
30 2062 T4 COMPOSITE ADJUSTMENT BALL-BEARING HUB (4)
30 2084 ULP SHOCK TOWER FRONT 3.0MM GRAPHITE
30 2760-O T4 ALU LOWER ADJUSTMENT BULKHEAD - FRONT R / REAR L - ORANGE
30 2761-O T4 ALU LOWER ADJUSTMENT BULKHEAD - FRONT L / REAR R - ORANGE
30 3001-O T4’18 ALU LAYSHAFT BULKHEAD RIGHT - ORANGE
30 3002-O T4’18 ALU MOTOR MOUNT - ORANGE
30 3003-O T4’18 ALU MOTOR MOUNT PLATE - ORANGE
30 3085 ULP SHOCK TOWER REAR 3.0MM GRAPHITE
30 5432 HIGH-PERFORMANCE KEVLAR® DRIVE BELT FRONT 3 x 513 MM
30 5446 HIGH-PERFORMANCE KEVLAR® DRIVE BELT REAR 3 x 189 MM
30 5521-K ALU SOLID LAYSHAFT - BLACK
30 5577 COMPOSITE FIXED PULLEY 20T (2)
30 5784 SPUR GEAR 84T / 48
90 2304 HEX SCREW SH M3x4 - STAINLESS (10)
90 2306 HEX SCREW SH M3x6 (10)
90 3304 HEX SCREW SFH M3x4 (10)
90 3306 HEX SCREW SFH M3x6 (10)
90 3310 HEX SCREW SFH M3x10 (10)
94 0510 HIGH-SPEED BALL-BEARING 5x10x4 RUBBER SEALED (2)
96 0030 NUT M3 (10)
96 5050 E-CLIP 5 (10)
98 1212 PIN 2x12 (10)
30 4900 XRAY GEAR DIFFERENTIAL - SET
30 5188 COMPOSITE SOLID AXLE 38T - SET
30 1145 T4’18 CHASSIS 2.2MM GRAPHITE
#301147
T4’18 ALU FLEX CHASSIS 2.0MM
#301146
T4’18 ALU CHASSIS 2.0MM
HIGH-PERFORMANCE KEVLAR® DRIVE BELT
#305432 FRONT 3 x 513 MM STANDARD INCLUDED
#305434 FRONT 3 x 513 MM LOW-FRICTION OPTION
#305446 REAR 3 x 189 MM STANDARD INCLUDED
#305447 REAR 3 x 189 MM LOW-FRICTION OPTION
#303004
T4’18 BRASS MOTOR MOUNT PLATE
OFFSET SPUR GEARS 48P
#305772 72T / 48P OPTION
#305776 76T / 48P OPTION
#305778 78T / 48P OPTION
#305779 79T / 48P OPTION
#305781 81T / 48P OPTION
#305784 84T / 48P INCLUDED
OFFSET SPUR GEARS 64P
#305860 90T / 64P OPTION
#305862 92T / 64P OPTION
#305866 96T / 64P OPTION
#305869 99T / 64P OPTION
#305870 100T / 64P OPTION
#305874 104T / 64P OPTION
#305876 106T / 64P OPTION
#305878 108T / 64P OPTION
#305880 110T / 64P OPTION
#305882 112T / 64P OPTION
#305884 114T / 64P OPTION
#302063
ALU ADJUSTMENT BALL-BEARING HUB (2)
#309002
SET OF CERAMIC BALL-BEARINGS (14)
#303071
BELT TENSIONER SET

10
GEARING ADJUSTMENT
902304
SH M3x4
965050
C5
981212
P 2x12
940510
BB 5x10x4
903306
SFH M3x6
903304
SFH M3x4
960030
N M3
903310
SFH M3x10
902306
SH M3x6
NOTE
ORIENTATION
NOTE ORIENTATION
Short belt Long belt
BEARING OIL
(HUDY #106230)
OIL
OIL
BEARING OIL
(HUDY #106230)
➊
➋
3x10
3x6
3x6
3x6
3x6
3x6
3x4
3x6
3x6
3x6
3x6
3x6
3x6
3x6
3x6
3x6
The back screws generates more traction
and makes the car more stable in the
chicanes. Recommended for low-medium
traction tracks.
The front screw improves steering response
and in-corner steering. Recommended for
medium-high traction tracks.
Do not tighten fully
Do not tighten fully yet,
the nut will be tightened
after the motor mount is
mounted on the chassis.
NOTE ORIENTATION
SH M3x6
DETAIL
DETAIL
2. CENTRAL TRANSMISSION
1. 2. 3.
Tighten screws in order indicated. M3
nut must always be tightened fully.
When tightening the nut, use pliers.
IMPORTANT!
NOTE ORIENTATION
DETAIL
#303004
T4’18 BRASS MOTOR MOUNT PLATE
#302063
ALU ADJUSTMENT BALL-BEARING HUB (2)
OFFSET SPUR GEARS 48P
#305772 72T OPTION
#305776 76T OPTION
#305778 78T OPTION
#305779 79T OPTION
#305781 81T OPTION
#305784 84T INCLUDED
OFFSET SPUR GEARS 64P
#305860 90T OPTION
#305862 92T OPTION
#305866 96T OPTION
#305869 99T OPTION
#305870 100T OPTION
#305874 104T OPTION
#305876 106T OPTION
#305878 108T OPTION
#305880 110T OPTION
#305882 112T OPTION
#305884 114T OPTION
CUTAWAY VIEW
NOTE ORIENTATION
only when using XRAY OFFSET spur gears.

11
902306
SH M3x6
902306
SH M3x6
May be used when the front belt
becomes worn and loose. Belt
tensioner is NOT included in the kit
and must be purchased separately.
#303071
BELT TENSIONER SET
TO TIGHTEN FRONT BELT: Rotate both front nylon hubs in arrow direction BTO TIGHTEN REAR BELT: Rotate both rear nylon hubs in arrow direction B
FRONT BELT TENSION ADJUSTMENT
AB
REAR BELT TENSION ADJUSTMENT
BA
L=R L=R
L=R L=R
ABA
B
TO LOOSEN FRONT BELT: Rotate both front nylon hubs in arrow direction ATO LOOSEN REAR BELT: Rotate both rear nylon hubs in arrow direction A
LOWER DIFF POSITION
UPPER DIFF POSITION
LOWER DIFF POSITION
UPPER DIFF POSITION
Front diff LOWER position - tab in top notch
- provides more front traction, but makes
the car push more on power.
Recommended for low-traction tracks. Recommended for low-medium traction tracks.
Front diff UPPER position - tab in bottom
notch - provides more steering, but less front
traction
Recommended for medium-high traction
tracks and technical tracks. Recommended for medium-high traction tracks.
Rear diff LOWER position - tab in top notch - provides
more rear traction (mainly on-power), makes the
car more stable in chicanes, but makes the car
push on-power.
Rear diff UPPER position - tab in bottom notch -
provides more on-power steering, but makes the
rear slightly more loose.
INITIAL POSITION FOR CARPET
Place tab in this BOTTOM NOTCH
INITIAL POSITION FOR CARPET
Place tab in this BOTTOM NOTCH
INITIAL POSITION FOR ASPHALT
Place tab in this TOP NOTCH
INITIAL POSITION FOR ASPHALT
Place tab in this TOP NOTCH
DETAIL
2. CENTRAL TRANSMISSION

12
BAG
03
For better stability and to make the car easier to drive, optional #302190 and #303190 graphite stiffeners may be used on the suspension arms. Using only 4 screws, each graphite stiffener can be installed
or removed which will completely change the characteristics of the car. Stiffeners may be used independently at front and/or rear. IMPORTANT! Install/remove stiffeners equally on left & right sides.
2.5x6mm
2.5x6mm
#30 2190
GRAPHITE FRONT LOWER ARM PLATE 1.6MM (2)
#30 3190
GRAPHITE REAR LOWER ARM PLATE 1.6MM (2)
#30 3192
ARS GRAPHITE REAR LOWER ARM PLATE 1.6MM (2)
2.5x6mm
2x 2x 2x
FRONT ARMS
#302168 HARD OPTION
#302169 GRAPHITE INCLUDED
REAR ARMS - STANDARD
#303168 HARD OPTION
#303169 GRAPHITE INCLUDED
REAR ARMS - ARS™
#303170 HARD INCLUDED
#303171 GRAPHITE OPTION
STANDARD REAR SUSPENSION ACTIVE REAR SUSPENSION™
#307217 TITANIUM SUSPENSION PIVOT PIN (2)
#302711 BRASS FRONT 1-PIECE SUSPENSION HOLDER - FRONT - FF
#302721 BRASS FRONT 1-PIECE SUSPENSION HOLDER - REAR - FR
#303714 BRASS 2-PIECE SUSPENSION HOLDER - RIGHT
#303715 BRASS 2-PIECE SUSPENSION HOLDER - LEFT
#303721 BRASS REAR 1-PIECE SUSPENSION HOLDER - REAR - RR
#302712-O ALU FRONT 1-PIECE SUSPENSION HOLDER (FF-LOW)
#302722-O ALU FRONT 1-PIECE SUSPENSION HOLDER (FR-LOW)
3. FRONT & REAR SUSPENSION
30 2169 FRONT SUSPENSION ARM - GRAPHITE - 1-HOLE
30 2710-O ALU FRONT LOWER 1-PIECE SUSPENSION HOLDER - FRONT - FF
30 2720-O ALU FRONT LOWER 1-PIECE SUSPENSION HOLDER - REAR - FR
30 3129 COMPOSITE SET OF WHEELBASE SHIMS (3x1MM; 1x2MM) (2)
30 3169 REAR SUSPENSION ARM - GRAPHITE - 1-HOLE
30 3170 ARS - ACTIVE REAR SUSPENSION ARM - HARD - 1-HOLE
303712-O ALU LOWER 2-PIECE SUSPENSION HOLDER - RIGHT
303713-O ALU LOWER 2-PIECE SUSPENSION HOLDER - LEFT
30 3711-O ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - FRONT - RF (OPTION)
30 3720-O ALU REAR LOWER 1-PIECE SUSPENSION HOLDER - REAR - RR
30 7216 SUSPENSION PIVOT PIN (2)
36 2315 ECCENTRIC BUSHING SET (2)
90 1308 HEX SCREW SB M3x8 (10)
90 1310 HEX SCREW SB M3x10 (10)
90 1408 HEX SCREW SB M4x8 (10)
90 3306 HEX SCREW SFH M3x6 (10)
362315
362315
303129
303129
901310
303169
303720-O
303129
303129
901408
901408
903306
307216
362315
307216
302169
302720-O
901308
903306
362315
302710-O
303713-O (Left)
303712-O (Right)
BAG
303170
FOR ALTERNATIVE SETTING
ACTIVE REAR SUSPENSION™

13
901310
SB M3x10
901408
SB M4x8
901308
SB M3x8
901408
SB M4x8
FRONT DOWNSTOP
ADJUSTMENT
REAR DOWNSTOP
ADJUSTMENT
2x
2x
2x
REAR ARMS - STANDARD
#303168 HARD OPTION
#303169 GRAPHITE INCLUDED
REAR ARMS - ARS™
#303170 HARD INCLUDED
#303171 GRAPHITE OPTION
FRONT ARMS
#302168 HARD OPTION
#302169 GRAPHITE INCLUDED
REAR LEFT ARM
REAR LEFT ARM
REAR RIGHT ARM
REAR RIGHT ARM
RIGHT REAR ARM
RIGHT REAR ARM
FRONT LEFT ARMFRONT RIGHT ARM
LEFT REAR ARM
LEFT REAR ARM
REAR ARMS
FRONT ARMS
STANDARD REAR SUSPENSION
ACTIVE REAR SUSPENSION™
3. FRONT & REAR SUSPENSION
5mm
5mm
2.3mm
2.3mm
3mm
4x8mm
3x8mm
FRONT RIGHT ARM
FRONT LEFT ARM
L=R
L=R
L=R
COMPLETED ASSEMBLY
COMPLETED ASSEMBLY
(INITIAL SETTING)
3x10mm
3x10mm
4x8mm
4x8mm
COMPLETED ASSEMBLY
2.2mm

14
TOE-IN
TRACK-WIDTH
WHEELBASE
ROLL CENTER
ANTI-SQUAT
PRO-SQUAT
3x6x1mm
903306
SFH M3x6
903306
SFH M3x6
NOTE ORIENTATION
NOTE ORIENTATION
ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER
Middle position = 0.5 mm or 0.5° from center
Outer position = 1mm or 1° from center
The XRAY rear alu lower suspension holders provide even greater range of
adjustment for the rear suspension. Using different combinations of eccentric
bushings, fine adjustment of rear squat, rear toe-in, rear roll center, and rear track-
width can be obtained. For more information about the influence of rear squat, rear
toe-in, rear roll center and rear track-width on car handling, please refer to HUDY
Set-up Book (#209100).
Marked
“RR”
All possible mounting
alternatives of eccentric bushings
Composite eccentric bushings
INITIAL SETTING
1 10.5 0.50
Composite eccentric bushings
INTIAL SETTING
1 10.5 0.50
Marked
“FR”
ALTERNATIVE
STANDARD REAR SUSPENSION
(INITIAL SETTING)
ALTERNATIVE
ACTIVE REAR SUSPENSION™
FRONT SUSPENSION
REAR SUSPENSION
3. FRONT & REAR SUSPENSION
303129
SHIM 3x6x1
3x6x1mm
L=R
#303710-O ALU LOWER 2-PIECE SUSPENSION HOLDER
For more steering, we recommend using the
optional alu separate suspension holders.
#302721
BRASS FRONT 1-PIECE SUSPENSION
HOLDER (FR)
#302722-O
ALU FRONT 1-PIECE SUSPENSION
HOLDER (FR-LOW)
#303721
BRASS REAR 1-PIECE SUSPENSION
HOLDER - (RR)
#303714 BRASS 2-PIECE SUSPENSION HOLDER - RIGHT
#303715 BRASS 2-PIECE SUSPENSION HOLDER - LEFT
#307217
TITANIUM SUSPENSION PIVOT PIN (2)
L=R
#107633 HUDY Arm Reamer 3.0mm
It is extremely important that the arms move freely
on the pivot pins. If they do not, use the Arm Reamer
(3.0mm) to slightly resize the holes in the arms.

15
903306
SFH M3x6
303129
SHIM 3x6x1
TOE-IN
TRACK-WIDTH
WHEELBASE
ROLL CENTER
ANTI-DIVE
KICK-UP
All possible mounting
alternatives of eccentric bushings
ECCENTRIC BUSHINGS HAVE TWO DIFFERENT OFFSETS FROM THE CENTER.
Middle position = 0.5 mm or 0.5° from center
Outer position = 1mm or 1° from center
The XRAY front alu lower suspension holders provide even greater range of
adjustment for the front suspension. Using different combinations of eccentric
bushings, fine adjustment of front anti-squat, front kick-up, front toe-in, front roll
center, and front track-width can be obtained. For more information about the
influence of front anti-dive, front kick-up, front toe-in, front roll center and front
track-width on car handling, please refer to HUDY Set-up Book (#209100).
Marked
“FF”
Composite eccentric bushings
INITIAL SETTING
1 10.5 0.50
Composite eccentric bushings
INTIAL SETTING
1 10.5 0.50
FRONT SUSPENSION
3. FRONT & REAR SUSPENSION
#307217
TITANIUM SUSPENSION PIVOT PIN (2)
#302711
BRASS FRONT 1-PIECE SUSPENSION HOLDER - (FF)
#302712-O
ALU FRONT 1-PIECE SUSPENSION HOLDER (FF-LOW)
It is extremely important that the arms move freely
on the pivot pins. If they do not, use the Arm Reamer
(3.0mm) to slightly resize the holes in the arms.
L=R
#107633 HUDY Arm Reamer 3.0mm

16
FRONT TOE-IN
BAG
2x
L=R
OIL
940508
BB 5x8x2.5
930306
BB 3x6x2.5
903308
SFH M3x8
2x
L=R
303129
SHIM 3x6x1
3x1mm & 1x2mm composite shims
approximately 47mm
Use bearing oil for all bearings
NOTE
ORIENTATION
6mm THREAD
NOTE
ORIENTATION
NOTE
ORIENTATION
Tighten the screws gently but fully, and
then loosen 1/3 turn so the composite
dual servo saver moves freely.
SERVO LINK
Adjust servo link to fit your servo
65.4mm 65.4mm
(HUDY #106230)
INITIAL SETTING (3x6x1mm)
#301169
T4’18 GRAPHITE UPPER DECK 1.6MM
#302570
GRAPHITE STEERING PLATE SET
To change Ackermann angle, use 2 identical
shims (of same thickness) between the alu
steering plate and ball ends.
#306516-O
T4 ALU TOP DECK MOUNT - ORANGE
4. STEERING
04
902306
902305
940508
302526
940508
302536
302535
903306
301199
902306
303122-O
362652
303129
930306
302547-O
303126-K
362650
303129
372503
372503
372503
303454
362652
903308
302663
302612
302663
302663
302612
302663
303212
30 1199 T4’18 UPPER DECK 2.0MM GRAPHITE
30 2526 COMPOSITE DUAL SERVO SAVER ARM
30 2535 ALU STEERING POST FOR DUAL SERVO SAVER (2)
30 2536 ALU STEERING POST FOR FLOATING SERVO SAVER (2)
30 2547-O T4’14 ALU STEERING PLATE 8.5MM FOR DUAL SERVO SAVER - ORANGE
30 2612 ALU ADJ. TURNBUCKLE M3 L/R 39 MM - SWISS 7075 T6 (2)
30 2663 COMPOSITE BALL JOINT 5 MM - OPEN - V2 (8)
30 3122-O ALU SHIM 3x6x1.0MM - ORANGE (10)
30 3126-K ALU SHIM 3x6x5.0MM - BLACK (10)
30 3129 COMPOSITE SET OF SHIMS (3x1MM; 1x2MM) (2)
30 3212 ALU ADJ. TURNBUCKLE L/R 26 MM - SWISS 7075 T6 (2)
30 3454 BALL JOINT 4.9MM - OPEN (4)
36 2650 BALL END 4.9MM WITH THREAD 6MM (2)
36 2652 BALL END 4.9MM WITH THREAD 10MM (2)
37 2503 COMPOSITE SERVO SAVER - X-STIFF - SET - V2
90 2305 HEX SCREW SH M3x5 (10)
90 2306 HEX SCREW SH M3x6 (10)
90 3306 HEX SCREW SFH M3x6 (10)
90 3308 HEX SCREW SFH M3x8 (10)
93 0306 BALL-BEARING 3x6x2.5 (2)
94 0508 HIGH-SPEED BALL-BEARING 5x8x2.5 RUBBER SEALED (2)
#302525
ALU DUAL SERVO SAVER ARM
We recommend using the aluminum
dual servo saver arms when better
steering response is needed. Also
recommended for asphalt tracks.
#302525
ALU DUAL SERVO SAVER ARM

17
902305
SH M3x5
902306
SH M3x6
303129
SHIM 3x6x2
303126-K
SHIM 3x6x5
303122-O
SHIM 3x6x1
903306
SFH M3x6
CHASSIS FLEX SETTING
TOP DECK SETTING
H = Hitec (24T)
F = Futaba, Robe (25T)
K = KO, JR, Airtronics, Sanwa (23T)
Optional alu top deck mount improves
forward and rear traction and makes the
car more stable and easier to drive under
low-traction conditions, however generates
more on-power push. Recommended for low
and medium traction conditions.
When the aluminum top deck mount is used,
the screws from layshaft bulkheads and M3 nut
from motor holder must be removed (page 10/
step 1).
3x6x2mm
3x6x5mm
10mm THREAD
10mm THREAD
HUDY ALU SERVO HORNS
#293491 KO, JR, Sanwa, Airtr. - OFFSET - 23T
#293492 Hitec - OFFSET - 24T
#293493 Futaba - OFFSET - 25T
#293501 KO, JR, Sanwa, Airtronics - 23T
#293502 Hitec - 24T
#293503 Futaba - 25T
#301169
T4’18 GRAPHITE UPPER DECK 1.6MM
We recommend using optional 1.6mm top deck for super-low traction conditions as it
provides more overall traction and steering.
#306516-O
T4 ALU TOP DECK MOUNT - ORANGE
Smart chassis flex adjustment via graphite steering plate
which can be mounted with an additional aluminum stand.
Using only the graphite steering plate, chassis flex is
medium; using the aluminum stand for reinforcement, the
flex becomes stiffer. Stiffer flex results in more aggressive
handling and increased steering.
Do not use the layshaft screws for initial setting.
If the layshaft screws on the top deck are used, it
is necessary to use also 3x6x1 shims under the top
deck to connect top deck with layshaft bulkheads.
Do not use for
basic set-up
Do not use for
basic set-up
#302570
GRAPHITE STEERING PLATE SET
For more in-corner steering and better steering response, aluminum
servo horns may be used.
IMPORTANT!
When the aluminum horn is used, the steering servo saver is not
used. This increases the risk of breaking the servo in serious crashes.
4. STEERING
INITIAL SETTING
STANDARD STEERING ARM MOUNTING
Standard steering mounting system
provides maximum steering response
and makes steering more precise.
(INITIAL SETTING)
ALTERNATIVE 1
Floating steering mounting system makes the car easier to drive over
curbs and on bumpy tracks. Helps prevent oversteer.
NOTE: The floating steering arms are mounted on the
graphite servo holder in the Final Assembly page 33/step 1.
FLOATING STEERING ARM MOUNTING
ALTERNATIVE 2
3x5mm
3x5mm
3x6mm

18
05
BAG
901304
362650
302663
303803
302804
930407
303212
980210
305341
302663
303432-O
303455
362650
302663
901303
302663
303212
305350-K
302253
305346
305394
305221
305328
362652
303123-K
302291
901304
362651
303127-K
303354
940510
303455
901303
303432-O
930407
307221
303129
362651 305350-K
901304
303122-K
362649
901304
902205
940510
305231
901302
305241
902310
302364
303123-K
902205
940510
940510
901302
980210
305253
305254
362649
307321
305392
302363
305253
901302
#305242
DRIVE SHAFT REPLACEMENT CAP 3.5MM - ORANGE - STRONG (4)
#307222 TITANIUM FRONT ARM PIVOT PIN (2)
#307322 TITANIUM REAR ARM PIVOT PIN (2)
BAG
303129
302253
362650
302663
303212
303129
362649
302663
902310
302369
302370
302291
901304
FOR ALTERNATIVE SETTING
ACTIVE REAR SUSPENSION™
5. FRONT & REAR TRANSMISSION
30 2253 COMPOSITE STEERING BLOCK - HARD
30 2291 STEEL STEERING BUSHING (2+2)
30 2363 COMPOSITE C-HUB RIGHT - 4° DEG. - MEDIUM - V2
30 2364 COMPOSITE C-HUB LEFT - 4° DEG. - MEDIUM - V2
30 2369 COMPOSITE C-HUB RIGHT - 0° DEG. - HARD
30 2370 COMPOSITE C-HUB LEFT - 0° DEG. - HARD
30 2663 COMPOSITE BALL JOINT 4.9MM - OPEN - V2 (8)
30 2804 ANTI-ROLL BAR FOR BALL BEARINGS - FRONT 1.4 MM
30 3122-K ALU SHIM 3x6x1.0MM - BLACK (10)
30 3123-K ALU SHIM 3x6x2.0MM - BLACK (10)
30 3127-K ALU SHIM 3x6x4.0MM - BLACK (10)
30 3129 COMPOSITE SET OF SHIMS (3x1MM; 1x2MM) (2)
30 3210 TURNBUCKLE M3 L/R 26 MM - HUDY SPRING STEEL™ (2) (OPTION)
30 3212 ALU ADJ. TURNBUCKLE M3 L/R 26 MM - SWISS 7075 T6 (2)
30 3212-O ALU ADJ. TURNBUCKLE L/R 26 MM - ORANGE - SWISS 7075 T6 (2) (OPTION)
30 3354 COMPOSITE UPRIGHT 0° OUTBOARD TOE-IN - HARD
30 3432-O ALU ANTI-ROLL BAR BUSHING - ORANGE (2)
30 3455 COMPOSITE ANTI-ROLL BAR BALL JOINT 4.9 MM (4)
30 3803 ANTI-ROLL BAR FOR BALL BEARINGS - REAR 1.3 MM
30 5231 DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
30 5241 DRIVE SHAFT REPLACEMENT CAP 3.5 MM (4)
30 5221 ECS (ES) DRIVE SHAFT 51MM FOR 2MM PIN - HUDY SPRING STEEL™ (1)
30 5253 ECS DRIVE SHAFT COUPLING FOR 2MM PIN - HUDY SPRING STEEL™
30 5254 ECS (ES) DRIVE SHAFT CASE FOR 2MM PIN - HUDY SPRING STEEL™
30 5328 ALU DRIVE SHAFT SWISS 7075 T6 - HARDCOATED - 50MM
30 5332 ECS ES (ES) DRIVE SHAFT 52MM - HUDY SPRING STEEL™ - SET (OPTION)
30 5333 ECS ES (ES) DRIVE SHAFT 50MM - HUDY SPRING STEEL™ - SET (OPTION)
30 5334 ECS ES (ES) DRIVE SHAFT 51MM - HUDY SPRING STEEL™ - SET
30 5346 ECS DRIVE AXLE FOR 2MM PIN - HUDY SPRING STEEL™
30 5394 ECS DRIVE SHAFT PIN 2 x 9 WITH FLAT SPOT (2)
30 5341 DRIVE AXLE - LIGHTWEIGHT - HUDY SPRING STEEL™
30 5350-K ALU WHEEL HUB - BLACK (2)
30 5392 DRIVE SHAFT PIN 2 x 10 WITH FLAT SPOT (2)
30 7221 FRONT ARM PIVOT PIN (2)
30 7321 REAR ARM PIVOT PIN (2)
36 2649 BALL END 4.9MM WITH THREAD 5MM (2)
36 2650 BALL END 4.9MM WITH THREAD 6MM (2)
36 2651 BALL END 4.9MM WITH THREAD 8MM (2)
36 2652 BALL END 4.9MM WITH THREAD 10MM (2)
90 1302 HEX SCREW SB M3x2.5 (10)
90 1303 HEX SCREW SB M3x3 (10)
90 1304 HEX SCREW SB M3x4 (10)
90 2205 HEX SCREW SH M2x5 (10)
90 2310 HEX SCREW SH M3x10 (10)
93 0407 BALL-BEARING 4x7x2.5 (2)
94 0510 HIGH-SPEED BALL-BEARING 5x10x4 RUBBER SEALED (2)
98 0210 PIN 2x10 (10)
#309002
SET OF CERAMIC BALL-BEARINGS (14)

19
901302
SB M3x2.5
305392
P 2x10
305394
P 2x9
902205
SH M2x5
940510
BB 5x10x4
980210
P 2x10
REAR TOE-IN
TRACK-WIDTH
Use Alu 50mm Drive Shafts in rear
Use Alu 50mm Drive Shafts in rear
OIL
OIL
BEARING OIL
(HUDY #106230)
BEARING OIL
(HUDY #106230)
THREAD LOCK THREAD LOCK
THREAD LOCK
GRAPHITE GREASE
(HUDY #106210)
2x10mm
2x9mm
GRAPHITE GREASE
(HUDY #106210)
GRAPHITE GREASE
(HUDY #106210)
ONLY FOR
REAR
DETAIL STEP
TL
TL
TIP
For easy installation of the #305241
plastic caps, use pliers as shown.
DO NOT OVERTIGHTEN
ECS drive shafts are available in 51mm length in kit, or optional 50mm & 52mm
lengths. The ECS drive shafts were developed to decrease front wheel vibration when
racing with a solid front axle, thus providing a much smoother and quieter ride and
increased steering.
ECS DRIVE SHAFTS
REAR TRANSMISSION
REAR TRANSMISSION FRONT TRANSMISSION
L=R
ALTERNATIVE
STANDARD REAR SUSPENSION
INITIAL SETTING
T4 OPTIONAL PARTS
ALTERNATIVE
ACTIVE REAR SUSPENSION™
INCLUDED
UPRIGHTS
#303351 1° - R MEDIUM (2-HOLE)
#303352 0° - R/L MEDIUM (2-HOLE)
#303353 1° - R HARD (2-HOLE)
#303354 0° - R/L HARD (2-HOLE)
#303360 0° - R/L GRAPHITE (2-HOLE)
#303361 1° - L MEDIUM (2-HOLE)
#303362 0° - R/L MEDIUM (1-HOLE)
#303363 1° - L HARD (2-HOLE)
#303364 0° - R/L HARD (1-HOLE)
#303358 ALU 1° - R/L (4-HOLE)
#303359 ALU 2° - R/L (4-HOLE)
INCLUDED
INCLUDED
WHEEL HUBS
#305350-K ALU - OFFSET (0 mm)
#305351 ALU - OFFSET (-0.75 mm)
#305352 ALU - OFFSET (+0.75 mm)
#305353 ALU - OFFSET (+1.5 mm)
STEERING BLOCKS
#302252 MEDIUM
#302253 HARD
#302254 GRAPHITE
#302256 ALU
Set-screw against
the flat spot
Longer drive shafts (52mm) make the car easier to drive because they give more traction and
better stability, mainly in chicanes. However, the car will understeer more than with shorter
(50mm) shafts which give a lot of steering and make the car more aggressive.
Both left & right shafts should ALWAYS be the same length at one end of the car (front or rear).
52mm shafts are recommended for carpet high-traction tracks.
51mm shafts are recommended for carpet tracks and large asphalt tracks.
50mm shafts are recommended for low-traction or tight asphalt tracks.
The new 51mm drive shafts which are included in the kit are the best compromise between 50
and 52mm length.
DRIVE SHAFTS
#305323 50MM - STEEL
#305324 52MM - STEEL
#305326 52MM - ALU
#305328 50MM - ALU
#305332 52MM - ECS
#305333 50MM - ECS
#305334 51MM - ECS
TL
#305242
DRIVE SHAFT REPLACEMENT CAP
3.5MM ORANGE - STRONG (4)
5. FRONT & REAR TRANSMISSION
2x 2x
2x
2x
L=R
L=R
0° OUTBOARD TOE-IN UPRIGHTS
Left UPRIGHT = Right UPRIGHT

20
902205
SH M2x5
940510
BB 5x10x4
980210
P 2x10
CAMBER ADJUSTMENT
CASTER ADJUSTMENT
REAR TOE-IN
TRACK-WIDTH
902310
SH M3x10
INCLUDED
INCLUDED
INCLUDED
INCLUDED
55.5mm 53.5mm
L=R L=R
C-HUBS FRONT TRANSMISSION
#302334 ALU 0° - R+L
#302335 ALU 2° - RIGHT
#302336 ALU 2° - LEFT
#302337 ALU 4° - RIGHT
#302338 ALU 4° - LEFT
#302339 ALU 6° - RIGHT
#302340 ALU 6° - LEFT
#302361 2°- RIGHT - MEDIUM
#302362 2°- LEFT - MEDIUM
#302363 4°- RIGHT - MEDIUM
#302364 4°- LEFT - MEDIUM
#302365 6°- RIGHT - MEDIUM
#302366 6°- LEFT - MEDIUM
#302371 2°- RIGHT - HARD
#302372 2°- LEFT - HARD
#302373 4°- RIGHT - HARD
#302374 4°- LEFT - HARD
#302375 6°- RIGHT - HARD
#302376 6°- LEFT - HARD
#302383 4°- RIGHT - GRAPHITE
#302384 4°- LEFT - GRAPHITE
BEARING OIL
(HUDY #106230)
Use Steel 51mm ECS Drive Shafts in front
OIL
FRONT TRANSMISSION
FRONT TRANSMISSION
L=R
L=R
L=R
T4 OPTIONAL PARTS
WHEEL HUBS
#305350-K ALU - OFFSET 0 MM
#305351 ALU - OFFSET -0.75 MM
#305352 ALU - OFFSET +0.75 MM
#305353 ALU - OFFSET +1.5 MM
ACTIVE REAR SUSPENSION™
C-HUBS ACTIVE REAR TRANSMISSION
#302334 ALU 0°
#302359 0° - RIGHT - MEDIUM
#302360 0° - LEFT - MEDIUM
#302369 0°- RIGHT - HARD
#302370 0°- LEFT - HARD
#302379 0° - RIGHT - GRAPHITE
#302380 0° - LEFT - GRAPHITE
STEERING BLOCKS
#302252 MEDIUM
#302253 HARD
#302254 GRAPHITE
#302256 ALU
5. FRONT & REAR TRANSMISSION
FRONT LEFT = FRONT RIGHT REAR LEFT = REAR RIGHT
2x 2x
2x
2x
RIGHT C-HUB
marked
RIGHT C-HUB
marked
SHORT
SHORT
LONG
LONG
2x
L=R
INCLUDED
INCLUDED
4x
4R
0R
LEFT C-HUB marked
LEFT C-HUB marked
4L
0L