Xray XB8 Series User manual

2
BEFORE YOU START
This is a high-competition, high-quality RC 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 XRAY, 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 this
is not what you wanted or expected, do not continue any further. Your hobby
dealer can not accept your 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
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
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 Výstavisku 6992
91101 Trenčín
Slovakia, EUROPE
Phone: [phone]
Fax: [phone]
Email: [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]
Email: [email protected]
IMPORTANT NOTES – NITRO ENGINES
• Always test the brakes and the throttle before starting your engine to avoid
losing control of the model.
• Make sure the air filter is clean and oiled.
• Never run your engine without an air filter. Your engine can be seriously
damaged if dirt and debris get inside the engine.
• For proper engine break-in, please refer to the manual that came with the
engine.
• Do not run near open flames or smoke while running your model or while
handling fuel.
• Some parts will be hot after operation. Do not touch the exhaust or the engine
until they have cooled. These parts may reach 275°F during operation!

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 R/C 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.
IMPORTANT NOTES – NITRO FUEL
• Handle fuel only outdoors. Never handle nitro fuel indoors, or mix nitro fuel in
a place where ventilation is bad.
• Only use nitro fuel for R/C models. Do not use gasoline or kerosene in R/C
models as it may cause a fire or explosion, and ruin your engine.
• Nitro fuel is highly inflammable, explosive, and poisonous. Never use fuel
indoors or in places with open fires and sources of heat.
• Always keep the fuel container cap tightly shut.
• Always read the warning label on the fuel container for safety information.
• Nitro-powered model engines emit poisonous vapors and gasses. These vapors
irritate eyes and can be highly dangerous to your health. We recommend wearing
rubber or vinyl gloves to avoid direct contact with nitro fuel.
• Nitro fuel for RC model cars is made of the combination of the methyl alcohol,
castor or synthetic oil, nitro methane etc. The flammability and volatility of these
elements is very high, so be very careful during handling and storage of nitro
fuel.
• Keep nitro fuel away from open flame, sources of heat, direct sunlight, high
temperatures, or near batteries.
• Store fuel in a cool, dry, dark, well-ventilated place, away from heating devices,
open flames, direct sunlight, or batteries. Keep nitro fuel away from children.
• Do not leave the fuel in the carburetor or fuel tank when the model is not in use.
There is danger that the fuel may leak out.
• Wipe up any spilled fuel with a cloth.
• Be aware of spilled or leaking fuel. Fuel leaks can cause fires or explosions.
• Do not dispose of fuel or empty fuel containers in a fire. There is danger of
explosion.

4
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 at our website at 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.
Professional Multi Tool
(HUDY #183011)
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 instant
glue
Cut off shaded
portion
Cut off
remaining
material
Tighten screw
gently
TOOLS REQUIRED
EQUIPMENT REQUIRED
TOOLS & EQUIPMENT INCLUDED NOT INCLUDED
Assemble front
and rear the same
way
Apply oil
Use special
tool
Silicone Shock Oil
(HUDY #106356 550cSt)
(HUDY #106361 600cSt)
Silicone Diff Oil
(HUDY #106431 3000cSt)
(HUDY #106471 7000cSt)
Air Filter Oil
(HUDY #106240)
Receiver Pack
LiPo Battery Pack
Transmitter .21ci (3.5cc) Engine
(FX K301 EC #650103)
Manifold & Exhaust Glow Plug IgniterStarter Box & Battery Pack
(HUDY #104500)
Steering and Throttle Servos
Battery Charger
Receiver Lexan™ Paint
Fuel + Fuel Bottle
(HUDY #104200)
Special Tool for all turnbuckles,
nuts (HUDY #181090)
Turnbuckle Wrench
(HUDY #181040 4mm)
(HUDY #181050 5mm)
Phillips 5.0mm
(HUDY TOOLS)
Socket 5.0/5.5mm
(HUDY TOOLS)
Allen 1.5/2.0/2.5/3.0mm
(HUDY TOOLS)
17mm Wheel Nut Tool
(HUDY #107570)
Side Cutters
(HUDY #189010)
Body Reamer
(HUDY #107600)
or
(HUDY #107601)
Cross Wrench
(HUDY #107581)
Flywheel Tool
(HUDY #182015)
Scissors
(HUDY #188990)
Needle Nose Pliers
(HUDY #189020)
➊ ➋ ➌
Apply grease Apply
threadlock
Ensure smooth
non-binding
movement
Use pliers Follow tip here
Arm Reamer 3mm/4mm
(HUDY TOOLS)
Graphite Grease
(HUDY #106210)
Threadlock CA Glue
Follow Set-up
Book
Use cleaner
or WD-40®
Time
Ball Allen 2.5mm
(HUDY TOOLS)
BOOK
SET-UP
BOOK
SET-UP
Pocket Hobby Knife
(HUDY #188981)
Electric Motor
& Pinion Gear
Speed Controller Double-sided Tape
(HUDY #107875)
Electric Nitro
Snap Ring Pliers
(HUDY #189040)
Tires & Wheels

5
XB8 TECH TIPS
TO CLOSE A WIDE GAP TO OPEN A NARROW GAP
If there is too much or too little diff side play, this may create non-optimal gear mesh between the diff gear and the pinion drive gear. This
is easily resolved by inserting 1 or 2 of the included thin shims behind a diff outdrive ball-bearing, depending on how much play there is.
FRONT & REAR DIFF GEAR MESH ADJUSTMENT
THE LOCATION OF THE SHIM(S) DEPENDS ON WHETHER YOU ARE TRYING TO CLOSE OR OPEN THE GAP:
TIP
To CLOSE a wide gap:
add 1 or 2 shims
against diff spur gear
To OPEN a narrow gap:
add 1 or 2 shims on the
other side of the diff, away
from spur gear
insert shim(s) here
OPEN A NARROW GAP
#962130 S 13 x 16 x 0.2 mm (10) #962130 S 13x16x0.2mm (10)
#962131 S 13 x 16 x 0.1 mm (10) #962131 S 13x16x0.1mm (10)
WASHER WASHER
insert shim(s) here
CLOSE A WIDE GAP
9. FUEL TANK & ENGINE 12. FINAL ASSEMBLY
BAG BAG
1. DIFFERENTIAL XB8XB8 XB8EXB8E
DRIVE SHAFT PIN SERVICING
TIP
To enjoy the longest possible lifespan of the drive shafts and diff outdrives, it is extremely important to properly service the drive shaft pins.
Inspect the pins after every 3 hours of runtime. If the pins show any wear, replace them with new pins.
For easy drive pin replacements use #106000
HUDY Drive Pin Replacement Tool.
To replace the worn pins use only
premium HUDY drive pins #106050.
Do not use drive shafts
when the pins are worn.
Press out the worn pins. Press in new pins and
regularly inspect for wear.
SUSPENSION & DRIVETRAIN MAINTENANCE
• Check suspension for free movement during building and operation, and especially after running
and if you have crashed the car. If the suspension does not move freely, use the appropriate HUDY
Arm Reamer to clean and resize the holes of the suspension arms.
• Regularly check the drive shaft pins (both side and center) and if they show any wear must be
immediately replaced by new pins. If the car is run with worn pins, excessive wear on the diff
outdrives will result. The 106000 HUDY Drive Pin Replacement Tool (for 3mm Pins) is a compact,
rugged multi-use tool set for replacing 3mm drive pins in drive shafts. Use the HUDY replacement
drive shaft pins 3x14 (#106050).
• Regularly inspect and replace the connecting pins which connect the center drive shafts with the
pinion gear, and also the pins that connect the wheel drive shafts with wheel axles. Use HUDY
Graphite Grease to lubricate the drive shaft connecting joints and the diff gears.
• Pivot balls and ball-joints will naturally wear for some time and will generate play. If there is too
much play the pivot balls and ball joints need to be replaced.
• If the car is run in wet conditions, apply WD-40® on all drivetrain parts before the run. After the
run, clean and dry the parts again.
HUDY SPRING STEEL™
The HUDY Spring Steel™ used in the car is the strongest and most durable steel material on the RC market. While items made from HUDY Spring Steel™ are still subject to wear, the lifespan is considerably
longer than any other material. As parts made from HUDY Spring Steel™ wear, the brown color will after some time “go down” but it will not affect the strength of the material. The brown color is only a
surface treatment and if the brown color will wear the durability of the part will be still strong.
MANUAL STEPS ONLY FOR XB8 MANUAL STEPS ONLY FOR XB8E MANUAL DUAL STEPS FOR XB8E & XB8
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.

6
DIFFERENTIAL GEARS
1. F&R DIFFERENTIALS
2x
F=R
➊
➋
➌
➍
➎
➏
355005 XB8 DIFFERENTIAL 46T - V2 - SET
355022 DIFFERENTIAL CASE - V2
355031 STEEL DIFF BEVEL & SATELLITE GEARS - V2 (2+4)
355046 FRONT/REAR DIFF LARGE BEVEL GEAR 46T - HUDY STEEL
355065 DIFF OUTDRIVE ADAPTER - V2 - HUDY SPRING STEEL™ (2)
355084 F/R DIFF PIN (2)
355091 F/R DIFF GASKET (4)
903312 HEX SCREW SFH M3x12 (10)
940816 BALL-BEARING 8x16x5 RUBBER SEALED - GREASE (2)
964030 WASHER S 3.5x12x0.2 (10)
964060 WASHER S 6x18x0.2 (10)
971061 SILICONE O-RING 6x1.55 (10)
980261 PIN 2.5x11.5 (10)
BAGS
940816
903312
355046
964060
355031
355031
971061
355022 940816
355091
964030
980261
971061 355084
355065
355065
940816
BB 8x16x5
964060
S 6x18x0.2
971061
O 6x1.55
980261
P 2.5x11.5
Graphite Grease
(HUDY #106210)
Graphite Grease
(HUDY #106210)
STEP DETAIL
➎
➎➏
➏
DETAIL
BOOK
SET-UP
IMPORTANT!
Use the same diff outdrives on both ends of a diff.
#355022-G
DIFFERENTIAL CASE - V2 - GRAPHITE
#355086
HEAT RESISTANT F/R ALU DIFF PIN
+ INSERTS (SET)
XB8XB8E
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL OPTION
#930817 8x16x5 OIL STEEL OPTION
#940816 8x16x5 GREASE RUBBER INCLUDED
#940817 8x16x5 OIL RUBBER OPTION
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL OPTION
#930817 8x16x5 OIL STEEL OPTION
#940816 8x16x5 GREASE RUBBER INCLUDED
#940817 8x16x5 OIL RUBBER OPTION

7
DIFFERENTIAL OIL
BOOK
SET-UP
After assembly the differentials should
have a length of 32.3~32.5 mm
measured from the ends of the installed
ball-bearings. If differentials are
longer, retighten the 4 screws holding
the crown gears.
32.3~32.5 mm
1. F&R DIFFERENTIALS
964030
S 3.5x12x0.2
903312
SFH M3x12
2x
➊
➋
➌
➍
➎
➏
➊
➋
➌
➍
940816
BB 8x16x5
964060
S 6x18x0.2
971061
O 6x1.55
980261
P 2.5x11.5
Rear diff:
Silicone oil 3.000cSt
Fill just above the
satellite gears.
Rear diff 3.000cSt
Front diff 7.000cSt
Front diff:
Silicone oil 7.000cSt
Fill just above the
satellite gears.
Graphite Grease
(HUDY #106210)
Graphite Grease
(HUDY #106210)
F=R
Tighten the screws equally Finish tightening in this order
➎
STEP DETAIL
DETAIL
IMPORTANT!
Use the same diff outdrives on both ends of a diff.
OILOIL
Fill the differentials
with oil just above the
satellite gears.
IMPORTANT!
VERY IMPORTANT!
OIL
INCORRECT
CORRECT
Do not overfill the differential.
If there is too much oil in the
differential, it may leak after
it cools down after use.
Use the following silicone oils included in the kit for initial settings:
FRONT diff:7.000cSt / REAR diff: 3.000cSt
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
To ensure you have the same amount of oil from rebuild to rebuild, do the following:
1. Put the diff (without oil) on the scale and check the weight:
- REAR DIFF approx. 39.30g
- FRONT DIFF approx. 39.30g
2. Slowly pour oil into the diff and watch the weight.
Add 2.60g of oil into the diff. The approximate
weight of the diff+oil is approx. 41.90g
FRONT FRONT
REAR gg
g
g
REAR
39.30g + 2.60g = 41.90g
39.30g + 2.60g = 41.90g
OIL
FRONT DIFF
REAR DIFF
39.30
39.30 41. 90
41. 90
XB8XB8E
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED

8
355072
940816
903312
355056 XB8E (46T)
355058 XB8 (48T)
971061
355031
355031
355031
964030
971061 355023
940816
355092
964060
964060
964030
355031
980261
355082
355072
1. CENTER DIFFERENTIAL
BAG
355013 CENTER DIFFERENTIAL - LARGE - SET - V2
355023 CENTER DIFFERENTIAL CASE - V2
355031 STEEL DIFF BEVEL & SATELLITE GEARS - V2 (2+4)
355056 CENTER DIFF SPUR GEAR 46T - LARGE
355058 CENTER DIFF SPUR GEAR 48T - LARGE
355072 LARGE CENTER DIFF OUTDRIVE ADAPTER - HUDY STEEL (2)
355082 CENTER DIFF PIN (2)
355092 CENTER DIFF GASKET (2)
903312 HEX SCREW SFH M3x12 (10)
940816 BALL-BEARING 8x16x5 RUBBER SEALED - GREASE (2)
964030 WASHER S 3.5x12x0.2 (10)
964060 WASHER S 6x18x0.2 (10)
971061 SILICONE O-RING 6x1.55 (10)
980261 PIN 2.5x11.5 (10)
940816
BB 8x16x5
971061
O 6x1.55
964060
S 6x18x0.2
➊
➋
➌
➍
➎
➏
Graphite Grease
(HUDY #106210)
Graphite Grease
(HUDY #106210)
980261
P 2.5x11.5
STEP DETAIL
➎
➏
➏➎
DETAIL
#355023-G
CENTER DIFFERENTIAL CASE - V2 - GRAPHITE
#355012
CENTER DIFFERENTIAL - V1 - SET
CENTER DIFF SPUR GEARS - LARGE
#355056 46T INCLUDED (XB8E)
#355057 47T OPTION
#355058 48T INCLUDED (XB8)
XB8XB8E
#355087
HEAT RESISTANT CENT ALU DIFF PIN
+ INSERTS (SET)
#355083
HEAT RESISTANT CENTER STEEL DIFF PIN
+ INSERTS (SET)
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
CENTER DIFF SPUR GEARS - LARGE
#355056 46T INCLUDED (XB8E)
#355057 47T OPTION
#355058 48T INCLUDED (XB8)
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL OPTION
#930817 8x16x5 OIL STEEL OPTION
#940816 8x16x5 GREASE RUBBER INCLUDED
#940817 8x16x5 OIL RUBBER OPTION
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL OPTION
#930817 8x16x5 OIL STEEL OPTION
#940816 8x16x5 GREASE RUBBER INCLUDED
#940817 8x16x5 OIL RUBBER OPTION

9
DIFFERENTIAL OIL
➎
971061
O 6x1.55
964060
S 6x18x0.2
940816
BB 8x16x5
➊
➋
➍
➎
➏
➌
Graphite Grease
(HUDY #106210)
Graphite Grease
(HUDY #106210)
32.3~32.5 mm
After assembly the differential
should have a length of 32.3~32.5
mm measured from the ends of
the installed ball-bearings. If
differential is longer, retighten the
4 screws holding the spur gear.
1. CENTER DIFFERENTIAL
964030
S 3.5x12x0.2
903312
SFH M3x12
Tighten the screws equally Finish tightening in this order
➊
➋
➌
➍
STEP DETAIL
Use the following silicone oil included in the kit for initial setting:
Center diff: 7.000cSt
DETAIL
BOOK
SET-UP
OIL
Fill the differentials
with oil just above the
satellite gears.
IMPORTANT!
VERY IMPORTANT!
OIL
INCORRECT
CORRECT
Do not overfill the differential.
If there is too much oil in the
differential, it may leak after
it cools down after use.
Center diff:
Silicone oil 7.000cSt
Fill to just above the satellite gears.
980261
P 2.5x11.5
#107865 HUDY Ultimate Digital Pocket Scale 300g±0.01g
1. Put the diff (without oil) on the scale and
check the weight (approximately 42.97g).
2. Slowly pour oil into the diff and watch the
weight. Add 5.20g of oil into the diff. The
approximate weight of the diff+oil is 48.17g.
To ensure you have the same amount of oil from rebuild to rebuild, do the following:
OIL
42.97g + 5.20g = 48.17g
CENTER DIFF
Center diff 7.000cSt
g
48.30
g
42.97
XB8XB8E
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED

10
2. FRONT TRANSMISSION
930816
BB 8x16x5
980314
P 3x14
901404
SB M4x4
Graphite Grease
(HUDY #106210)
Apply oil from inside
to prevent breakage
of the rubber boot.
85mm - SHORT CVD DRIVE SHAFT
BEFORE inserting the clip on the central CVD shaft joint, apply a small amount of
threadlock on the area where the clip goes.
AFTER inserting the clip on the central CVD shaft joint, turn the clip so that the slot is 90°
from the pin. This will prevent the pin from opening the clip.
PIN
XB8XB8E
DETAIL
Cut on both front
and rear bulkhead blocks
DETAIL
➊
➊
➋
➋
➌
➌
➍
➍
STEP DETAIL
➍
355005
908312
352006 XB8 DIFF BULKHEAD BLOCK SET FRONT/REAR
355114 BEVEL DRIVE GEAR 14T
355236 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
355416 CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™
355427 FRONT CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™
355471 DRIVE SHAFT LOCKING RING (2)
355472 DRIVE SHAFT BOOT (2)
901404 HEX SCREW SB M4x4 (10)
908312 HEX SCREW SOCKET HEAD CAP SCH M3x12 (10)
930816 BALL-BEARING 8x16x5 STEEL SEALED - GREASE (2)
980314 PIN 3x14 (10)
355005 XB8 DIFFERENTIAL 46T - V2 - SET
BAG
➎
➎
(85mm)
FRONT DIFF 7.000cSt
Graphite Grease
(HUDY #106210)
The ring can be assembled by hand,
but for easy disassembly we recommend
using snap ring pliers (HUDY #189040)
355472
355471
355427
355236
355416 352006
355114
352006
980314
901404
930816
930816
step 1step 2
step 3
OIL
STEP DETAIL
➎
➎
Push joint against gear to remove gap.
Tighten setscrew onto gear flat spot.
DETAIL
#355426
FRONT UNIVERSAL CENTRAL DRIVE SHAFT - HUDY SPRING STEEL™ - SET
Follow the TECH TIP on page 5
for drive shaft pin servicing
NOTE
ORIENTATION
908312
SCH M3x12
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL INCLUDED
#930817 8x16x5 OIL STEEL OPTION
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL INCLUDED
#930817 8x16x5 OIL STEEL OPTION

11
2. REAR TRANSMISSION
930816
BB 8x16x5
980314
P 3x14
901404
SB M4x4
Apply oil from inside to prevent
breakage of the rubber boot.
NOTE
ORIENTATION
115mm - LONG CVD DRIVE SHAFT
Cut on both front and
rear bulkhead blocks
BEFORE inserting the clip on the central CVD shaft joint, apply a small amount of
threadlock on the area where the clip goes.
AFTER inserting the clip on the central CVD shaft joint, turn the clip so that the slot is 90°
from the pin. This will prevent the pin from opening the clip.
Follow the TECH TIP on page 5
for drive shaft pin servicing.
Graphite Grease
(HUDY #106210)
DETAIL
DETAIL
DETAIL
BAG
➊
➊
➋
➋
➌
➌
➍
➍
STEP DETAIL
➎
355005
908312
352006 XB8 DIFF BULKHEAD BLOCK SET FRONT/REAR
353053 XB8 ALU REAR SHOCK TOWER - CNC MACHINED 7075 T6 (4MM)
355114 BEVEL DRIVE GEAR 14T
355236 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
355416 CENTRAL CVD SHAFT UNIVERSAL JOINT - HUDY SPRING STEEL™
355627 REAR CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™
355471 DRIVE SHAFT LOCKING RING (2)
➎
➎
➎
(115mm)
REAR DIFF
3.000cSt
The ring can be assembled by hand,
but for easy disassembly we recommend
using snap ring pliers (HUDY #189040)
Push joint against gear to remove gap.
Tighten setscrew onto gear flat spot.
908312
355472
355471
355627
355236
355416 352006
355114
352006
353053
980314
901404
930816
930816
PIN
STEP DETAIL
➍
step 1step 2
step 3
OIL
355472 DRIVE SHAFT BOOT (2)
901404 HEX SCREW SB M4x4 (10)
908312 HEX SCREW SOCKET HEAD CAP SCH M3x12 (10)
930816 BALL-BEARING 8x16x5 RUBBER SEALED - GREASE (2)
980314 PIN 3x14 (10)
355005 XB8 DIFFERENTIAL 46T - V2 - SET
#355628
REAR UNIVERSAL CENTRAL DRIVE SHAFT - HUDY SPRING STEEL™ - SET
step 4
908312
SCH M3x12
XB8XB8E
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
Graphite Grease
(HUDY #106210)
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL INCLUDED
#930817 8x16x5 OIL STEEL OPTION
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL INCLUDED
#930817 8x16x5 OIL STEEL OPTION

12
BAG
XB8XB8E
3. REAR SUSPENSION
909395
353424
353327
352314
353371
353371
352006
909372
353316
352314
357212
902318
353116-XH
903308
901305
901303
333450 352470
901312
352470
353116-XH
352460
333450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2)
352006 XB8 DIFF BULKHEAD BLOCK SET FRONT/REAR
352314 COMPOSITE ECCENTRIC BUSHINGS - V2 (2)
352460 PIVOT BALL 5.8 (10)
352470 BALL JOINT 5.8 (8)
353116-XH COMPOSITE REAR LOWER SUSPENSION ARM - X-HARD
353316 ALU REAR LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER
353327 ALU REAR LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER
353371 SET OF COMPOSITE LOWER ARM SHIMS
353424 REAR ANTI-ROLL BAR 2.4MM
357212 LOWER INNER PIVOT PIN F+R (2)
901408
901303 HEX SCREW SB M3x3 (10)
901305 HEX SCREW SB M3x5 (10)
901312 HEX SCREW SB M3x12 (10)
901408 HEX SCREW SB M4x8 (10)
902318 HEX SCREW SH M3x18 (10)
903308 HEX SCREW SFH M3x8 (10))
909372 SCREW PHILLIPS SS 3.5x22 (10)
909395 SCREW PHILLIPS SS 3.5x45 (10)
REAR ANTI-ROLL BARS
#353418 ø1.8mm OPTION
#353420 ø2.0mm OPTION
#353422 ø2.2mm OPTION
#353424 ø2.4mm INCLUDED
#353425 ø2.5mm OPTION
#353426 ø2.6mm OPTION
#353428 ø2.8mm OPTION
#353430 ø3.0mm OPTION
#353432 ø3.2mm OPTION
#353113 XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - RIGHT
#353123 XB8’16 COMPOSITE REAR LOWER SUSPENSION ARM - LEFT
#353317 XB8 ALU REAR LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER
#353325 XB8 ALU REAR LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER
#333451
ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2)
#902407
HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4)
REAR SUSPENSION ARMS
#353115 MEDIUM OPTION
#353116 HARD OPTION
#353116-XH X-HARD INCLUDED
#353116-G GRAPHITE OPTION

13
TOE-IN
ANTI-SQUAT
ROLL CENTER DOWNSTOP
WHEELBASE
TRACK WIDTH
909395
SS 3.5x45
909372
SS 3.5x22
901408
SB M4x8
353371
SHIM 4x10x2
HARD / X-HARD / GRAPHITE
SUSPENSION ARMS
(HUDY #107634)
ARM REAMER
If the suspension arm does not move
freely use a HUDY Arm Reamer to
resize the holes of the arms.
➊
➊
➋
➌
➌
➍
➍
➎
2mm
4x8mm
RR
RF
All possible mounting
alternatives of eccentric bushings
INITIAL SETTING
RF
INITIAL SETTING
RR
Check for free movement
DETAIL
DETAIL
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 anti-squat, rear
toe-in, rear roll center, and rear track-width can be obtained. For more information about the influence of rear anti-squat, rear toe-in, rear roll center and rear track width on car handling, please refer to
HUDY Off-Road Set-up Book (#209099).
The tables describe the amounts of rear anti-squat, rear toe-in, rear track-width change depending
on the combinations of eccentric bushings used with 0 and 1mm, 1° offset. The 0.5mm, 0.5° represents
the half change.
Anti-Squat Example:
0(RR) - 0 (RF) = 3°
0(RR) - 0.5 (RF) = 3.5°
0(RR) - 1 (RF) = 4°
ANTI-SQUAT ROLL CENTER TRACK-WIDTH TOE-IN
RR RR RR RRRF RF RF RF(°) (mm) (mm) (°)
=3°
=4°
=2°
=4°
=3°
=5°
=2°
=3°
=1°
= 3°
= 3.5°
= 4°
=0mm
=1mm
=-1mm
=308
=306
=310
=3°
=4°
=2°
=2°
=3°
=1°
=4°
=5°
=3°
3.5x45mm
3.5x22mm
BOOK
SET-UP
0.5º1º
0.5º1º
2.0mm
DOWNSTOP SETTING
DETAIL
2.0mm Allen
#902407
Downstop screw
for fine tuning.
NOTE
ORIENTATION
NOTE
ORIENTATION
MEDIUM
SUSPENSION ARMS
RF
RR
Do not use INNER positions.
0.5º
0.5º
1º
1º
RF
RR
All positions are available.
0.5º
0.5º
1º
1º
3. REAR SUSPENSION
REAR SUSPENSION ARMS
#353115 MEDIUM OPTION
#353116 HARD OPTION
#353116-XH X-HARD INCLUDED
#353116-G GRAPHITE OPTION
XB8XB8E

14
3. REAR SUSPENSION
ANTI-ROLL BAR
901303
SB M3x3
901305
SB M3x5
901312
SB M3x12
902318
SH M3x18
903308
SFH M3x8
XB8XB8E
1.5mm
6mm
DETAIL
1.5~2.0mm
L=R
STEP DETAIL
➍
DETAIL
Loosen the 3x5 setscrew if the
anti-roll bar does not turn freely
Step
➊
DETAIL
Step check for free movement
➊
DETAIL
INITIAL SETTING
DETAIL
L=R
2x
➋
➊
➌
3x5mm
3x8mm
3x3mm
3x18mm
BOOK
SET-UP
Install the pivot balls with Professional
Multi Tool (HUDY #183011)
REAR ANTI-ROLL BARS
#353418 ø1.8mm OPTION
#353420 ø2.0mm OPTION
#353422 ø2.2mm OPTION
#353424 ø2.4mm INCLUDED
#353425 ø2.5mm OPTION
#353426 ø2.6mm OPTION
#353428 ø2.8mm OPTION
#353430 ø3.0mm OPTION
#353432 ø3.2mm OPTION

15
980317
P 3x17
901504
SB M5x4
941318
BB 13x19x4
980263
P 2.5x13
940816
BB 8x16x5
➊
➋
➌
➏
➐
➑
➍
➎
8x16x5mm
3x17mm
2.5x13mm
13x19x4mm
To tighten the setscrew you can
also use the HUDY 17mm Wheel
Nut Tool #107570
2.5mm
DETAIL
4. REAR SUSPENSION
352634 ADJ. TURNBUCKLE M5 L/R 50 MM - HUDY SPRING STEEL™ (2)
353020 COMPOSITE REAR BRACE HOLDER
353130 REAR UPPER INNER CAMBER LINK BALL JOINT (2)
353151 RELIEF REAR UPPER OUTER CAMBER LINK BALL JOINT (2)
353160 MOUNTING BALL 6.8 (4)
353170 PIVOT BALL 6.8 (4)
353354 COMPOSITE REAR UPRIGHT
353370 SET OF COMPOSITE REAR HUB CARRIER SHIMS
353524 COMPOSITE REAR WING HOLDER
355211 CVD DRIVE AXLE - HUDY SPRING STEEL™
355221 CVD UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™
355237 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™
355252 ALU WHEEL AXLE OFFSET "+2MM"- BLACK COATED (2)
BAG
2x
L=R
357331 REAR LOWER OUTER PIVOT PIN SCREW 3MM (2)
901504 HEX SCREW SB M5x4 (10)
902314 HEX SCREW SH M3x14 (10)
902318 HEX SCREW SH M3x18 (10)
902330 HEX SCREW SH M3x30 (10)
903312 HEX SCREW SFH M3x12 (10)
908318 HEX SCREW SOCKET HEAD CAP SCH M3x18 (10)
940816 BALL-BEARING 8x16x5 RUBBER SEALED - GREASE (2)
941318 BALL-BEARING 13x19x4 RUBBER SEALED - GREASE (2)
960030 NUT M3 (10)
980263 PIN 2.5x13 (10)
980317 PIN 3x17 (10)
908318
353524
960030
353170
902330
353354
353151
902318
352634
353160
353020
903312
960030
353130
355221
355237
980263
355211
980317
901504
940816
941318
357331
902314
960030
960030 353354
355252
353370
353370
OFFSET WHEEL AXLES
#355250 0mm OPTION
#355251 +1mm OPTION
#355252 +2mm INCLUDED
NOTE ORIENTATION
Use HUDY Ball-Bearing Grease
#106220 - STANDARD
#106221 - BLUE
#106222 - RED
Graphite Grease
(HUDY #106210)
1
4 | 3 | 2 | 1
43
2Drive shaft position
Follow the TECH TIP on page
5 for drive shaft pin servicing
REAR UPRIGHTS
#353354 HARD INCLUDED
#353354-G GRAPHITE OPTION
XB8XB8E
#355215
CVD ADJUSTABLE DRIVE AXLE - HUDY SPRING STEEL™
#355215
CVD ADJUSTABLE DRIVE AXLE - HUDY SPRING STEEL™
XRAY BALL-BEARING
#930816 8x16x5 GREASE STEEL OPTION
#940816 8x16x5 GREASE RUBBER INCLUDED
#931318 13x19x4 GREASE STEEL OPTION
#941318 13x19x4 GREASE RUBBER INCLUDED
#930817 8x16x5 OIL STEEL OPTION
#940817 8x16x5 OIL RUBBER OPTION
#931319 13x19x4 OIL STEEL OPTION
#941319 13x19x4 OIL RUBBER OPTION

16
4. REAR SUSPENSION
CAMBER
XB8XB8E
353370
SHIM 3x9x1
353354
SHIM 3x9x7
353370
SHIM 3x9x2
960030
N M3
902318
SH M3x18
902330
SH M3x30
960030
N M3
Ensure that the rear upright moves freely.
If it does not move freely, use sandpaper
to thin both wheelbase adjustment shims.
Shims for wheelbase
adjustment
Do not overtighten the self-locking nut.
Overtightening may result in suspension binding.
If the rear upright does not move freely, use a HUDY Arm Reamer to resize the hole.
ARM REAMER
2+1+1mm
INITIAL SETTING
(HUDY #107633)
2x
L=R
Check for free
movement
DETAIL
DETAIL
2x
2x
L=R
L=R
RIGHT
THREAD
LEFT
THREAD
OIL
OIL
RIGHT THREAD RIGHT THREADLEFT THREAD LEFT THREAD
26.5mm
7mm
26.5mm
NOTE ORIENTATION
NOTE
ORIENTATION
INITIAL SETTING
DETAIL
DETAIL
INITIAL SETTING
L=R
NOTE
ORIENTATION
3x18mm
3x30mm
BOOK
SET-UP
DETAIL
Use tools to tighten as shown
Special Tool for all turnbuckles & nuts (HUDY #181090)
or Turnbuckle Wrench 5mm (HUDY #181050)
Install the pivot balls with Professional
Multi Tool (HUDY #183011)

17
4. REAR SUSPENSION
960030
N M3
903312
SFH M3x12
902314
SH M3x14
908318
SCH M3x18
XB8XB8E

18
XB8XB8E
909372
901408
902318
352120-M
909395
901303
901312
901305
903308
352324
352314
357212
352314
353371
333450
352470
352492
352470
352460
352006
352323
FRONT ANTI-ROLL BARS
#352487 1.6mm OPTION
#352489 1.8mm OPTION
#352490 2.0mm OPTION
#352492 2.2mm INCLUDED
#352493 2.3mm OPTION
#352494 2.4mm OPTION
#352495 2.5mm OPTION
#352496 2.6mm OPTION
#352498 2.8mm OPTION
5. FRONT SUSPENSION
333450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2)
352006 DIFF BULKHEAD BLOCK SET FRONT/REAR
352120-M COMPOSITE FRONT LOWER SUSPENSION ARM - MEDIUM
352314 COMPOSITE SQUARE ADJ. ROLL CENTER BUSHINGS - V2 (2)
352323 ALU FRONT LOWER SUSP. HOLDER - FRONT - SQUARE ADJ. ROLL CENTER - V2
352324 ALU FRONT LOWER SUSP. HOLDER - REAR - SQUARE ADJ. ROLL CENTER - V2
352460 PIVOT BALL 5.8 (10)
352470 BALL JOINT 5.8 (8)
352492 FRONT ANTI-ROLL BAR 2.4MM
353371 SET OF COMPOSITE LOWER ARM SHIMS
357212 LOWER INNER PIVOT PIN F+R (2)
901303 HEX SCREW SB M3x3 (10)
901305 HEX SCREW SB M3x5 (10)
901312 HEX SCREW SB M3x12 (10)
901408 HEX SCREW SB M4x8 (10)
902318 HEX SCREW SH M3x18 (10)
903308 HEX SCREW SFH M3x8 (10))
909372 SCREW PHILLIPS SS 3.5x22 (10)
909395 SCREW PHILLIPS SS 3.5x45 (10)
BAG
#333451
ALU ANTI-ROLL BAR PIVOT BALL 5.8 MM - SWISS 7075 T6 - HARDCOATED (2)
#902407
HEX SCREW SH M4x7 WITH HEX FROM BOTTOM (4)
FRONT LOWER SUSP. ARMS
#352120 SOFT OPTION
#352120-M MEDIUM INCLUDED
#352120-G GRAPHITE OPTION

19
5. FRONT SUSPENSION
KICK UP
ROLL CENTER DOWNSTOP
WHEELBASE
TRACK WIDTH
901408
SB M4x8
909395
SS 3.5x45
909372
SS 3.5x22
353371
SHIM 4x10x2
All possible mounting alternatives
of eccentric bushings
3.5x22mm
3.5x45mm
The tables below describe the amounts of kick-up, front track-width change depending on the combinations
of eccentric bushings used with 0 and 1mm, 1° offset. The 0.5mm, 0.5° represents the half change.
* Not recommended to use this setting.
TRACK-WIDTH ROLL CENTER
FF FFFR FR(mm) (mm)
=308
=306
=310*
=1
=0
=-1
The XRAY alu front lower suspension holders provide even greater range of
adjustment for the front suspension. Using different combinations of eccentric
bushings, fine adjustment of front kick-up, roll center, and front track-width
can be obtained. For more information about the influence of kick-up, front
track-width, and roll centers on car handling, please refer to HUDY Off-Road
Set-up Book (#209099).
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
➊
➊
➋
➌
➌
➍
➍
➎
4x8mm
FR
FF
2mm
DETAIL
FRONT ARM
L=R
DETAIL
Check for free movement
DETAIL
Push the arm from both sides to create play
INITIAL SETTING
FF
INITIAL SETTING
FR
(HUDY #107634)
ARM REAMER
If the suspension arms do not move freely,
use a HUDY Arm Reamer to resize the holes.
DETAIL
0.0mm
DOWNSTOP SETTING
DETAIL
2.0mm Allen
#902407
Downstop screw
for fine tuning.
INITIAL SETTING
0.5º1º
0.5º1º
BOOK
SET-UP
XB8XB8E

20
5. FRONT SUSPENSION
ANTI-ROLL BAR
901303
SB M3x3
901305
SB M3x5
901312
SB M3x12
902318
SH M3x18
903308
SFH M3x8
XB8XB8E
FRONT ANTI-ROLL BARS
#352487 1.6mm OPTION
#352489 1.8mm OPTION
#352490 2.0mm OPTION
#352492 2.2mm INCLUDED
#352493 2.3mm OPTION
#352494 2.4mm OPTION
#352495 2.5mm OPTION
#352496 2.6mm OPTION
#352498 2.8mm OPTION
3x3mm
3x5mm
3x8mm
3x18mm
L=R
2x
Step check for free movement
➊
Loosen the 3x5 setscrew if
the anti-roll bar does not
turn freely
Step
➊
➊
➋
➌
➍
1.5mm
6mm
1.5~2.5mm
L=R
STEP DETAIL
➍
DETAIL
DETAIL
DETAIL
BOOK
SET-UP
Install the pivot balls with Professional
Multi Tool (HUDY #183011)