Reyco Granning IFS 1660S3 User manual

Motorhome Suspensions Owner’s Manual
Document #: D710551
Revision: J
Revision Date: 05/2022
IFS 1660S3|1700S3|1800S3|2000S3
Independent Front Suspension
Reyco Granning Suspensions
1205 Industrial Park Drive
Mount Vernon, MO 65712
Phone: [phone]
Fax: [phone]
www.reycogranning.com

Page Left Blank Intentionally

TABLE OF CONTENTS
- 1 -
Introduction ............................................................................................................................ 5
Service Notes ............................................................................................................................ 5
Identication ............................................................................................................................. 6
Model Options .......................................................................................................................... 7
Vehicle Towing Information .................................................................................................... 9
Maintenance Schedule ......................................................................................................... 10
Maintenance Record ............................................................................................................. 11
Part List ................................................................................................................................ . 12
Unit Assembly - IFS1660S3 & IFS1700S3 ............................................................................. 12
Unit Assembly – IFS1800S3 & IFS2000S3 ............................................................................ 13
Unit Assembly – IFS1701S3 ................................................................................................ .. 14
Unit Assembly - IFS20S3 ....................................................................................................... 15
Cont rol Arm Components .................................................................................................... 16
Control Arm Components Subassemblies ......................................................................... 17
Steering Components (IFS1660S3/IFS1700S3) ................................................................... 18
Steering Components (IFS18 00S3/IFS2000S3) ................................................................... 19
Steering Components (IFS1701S3) ...................................................................................... 20
Steering Components (IFS20S3) .......................................................................................... 21
Air Spring and Shock Components (IFS1800S3/IFS2000S3) .............................................. 22
Air Spring and Shock Components (IFS1701S3/IFS20S3) .................................................. 23
HCV Assembly Components (All) ......................................................................................... 24
Sway Bar Assembly Components (All) ................................................................................ 25
Disc Brake Components (ProTorq Spindle Nut) ................................................................ . 26
Disc Brake Components (Integral Spindle Nut) ................................................................ . 27
King Pin Components (All) .................................................................................................... 28
Steering Knuckle Carrier Components (All) ........................................................................ 29
Lubrication ........................................................................................................................... 30
Lubricant Specications and Intervals ................................................................................ 30
General Lubrication .............................................................................................................. 30
Ball Joi nts ............................................................................................................................... 30
Ball Studs on Tie Rods .......................................................................................................... 30
Carrier Bearing and King Pin ................................................................................................ 31
Steering Gear Hydraulic Oil ................................................................................................ .. 32
Steering Gear Trunnion Bearing .......................................................................................... 32
Steering Gear Input Shaft ..................................................................................................... 32
Wh eel Bearings ..................................................................................................................... 33
Troubleshooting.................................................................................................................. 34
Inspection ............................................................................................................................. 38
General Inspection ................................................................................................................ 38

TABLE OF CONTENTS
- 2 -
Inspecting Control Arm Bushings ........................................................................................ 38
Inspecting Tie Rod Ends ....................................................................................................... 39
Inspecting the ABS Sensor and Tone Ring .......................................................................... 39
Inspecting the Shock Absorber ............................................................................................ 40
Inspecting the Air Spring and Height Control Valve .......................................................... 40
Inspecting the Steering Arm and Relay Rod Ball Joints ..................................................... 41
Inspecting Wheel Bearing Endplay ...................................................................................... 42
Inspecting the Knuckle Carrier Bearing and Seal ............................................................... 43
Inspecting the Kingpin Vertical Endplay ............................................................................. 43
Inspecting the Steering Gear Sector Lash .......................................................................... 43
Adjustment .......................................................................................................................... 44
Adjusting Wheel End Play (PRO -TORQ ®style only) ............................................................ 44
Adjusting Suspension Ride Height ...................................................................................... 46
Adjusting the Maximum Wheel Turn Angle ........................................................................ 47
Inspection Before Alignment ............................................................................................... 48
Wheels and Tires ................................................................................................................... 48
Front Suspension .................................................................................................................. 49
Rear Axle and Suspension .................................................................................................... 49
Front Wheel Alignment ......................................................................................................... 49
Equipment ............................................................................................................................. 49
General ................................................................................................................................... 49
Preparation ............................................................................................................................ 50
Adjusting the Camber Angle ................................................................................................ 51
Eccentric Camber Adjustment ............................................................................................. 51
Bar Pin Camber Adjustment ................................................................................................ 52
Adjusting the Caster Angle ................................................................................................ . 53
Eccentric Caster Adjustment ............................................................................................. 53
Adjusting the Toe -In .............................................................................................................. 56
Repairs ................................................................................................................................ .. 57
General Procedures .............................................................................................................. 57
Cleaning the Parts ................................................................................................................. 57
Ground or Polished Parts ..................................................................................................... 58
Rough Parts ........................................................................................................................... 58
Drying ..................................................................................................................................... 58
Preventing Corrosion ............................................................................................................ 58
Replacing Tie Rod Ends ........................................................................................................ 58
Re moval ................................................................................................................................ . 58
Installation ............................................................................................................................. 58
Replacing Pitman Arm or Idler Arm Ball Joint .................................................................... 59

TABLE OF CONTENTS
- 3 -
Removal ................................................................................................................................ . 59
Installation ............................................................................................................................. 59
Replacing the Idler Arm Bearings (1660S3&1700S3) ......................................................... 60
Removal ................................................................................................................................ . 60
Installation ............................................................................................................................. 60
Replacing the Upper and Lower Control Arm Bushings ................................................... 60
Upper Control Arm Removal ............................................................................................... 61
Upper Control Arm Installation ........................................................................................... 61
Lower Control Arm Removal ................................................................................................ 62
Lower Control Arm Installation ........................................................................................... 62
Replacing Wheel Bearings, Oil Seals & Hub Caps (Pro -Torq ®Style Nut) ......................... 63
Removal ................................................................................................................................ . 63
Installation ............................................................................................................................. 64
Pre Adjusted with Integral Spindle Nut Wheel Hubs ................................................ 66
Recommended Service ..................................................................................................... 66
Hub and Component Cleaning ............................................................................................ 68
Inspecting Bearing Cups, Cones & Bearing Spacer ........................................................... 68
Removing Cups in Iron Hubs .......................................................................................... 69
Installing a New Cup in Iron Hubs ................................................................................. 69
Pre Adjusted with Integral Spindle Nut Wheel Hubs – Reassembly ................................ 69
Spindle Nut and Spiral Snap Ring Reassembly ................................................................ .. 70
Installing the Pre Adjusted with Integral Spindle Nut ....................................................... 70
Wheel Hub Assembly ............................................................................................................ 70
Replacing Brake Components ............................................................................................. 71
Brake Rotors .......................................................................................................................... 71
Brake Chambers .................................................................................................................... 71
Other Brake Components .................................................................................................... 71
Replacing the ABS Sensor and Tone Ring ........................................................................... 71
Sensor Removal .................................................................................................................... 72
Sensor Insta llation ................................................................................................................ 72
Tone Ring Removal and Installation .................................................................................... 72
Replacing the Shock Absorber ............................................................................................. 72
Removal ................................................................................................................................ . 72
Installation ............................................................................................................................. 73
Replacing the Air Spring ....................................................................................................... 73
Remo val ................................................................................................................................ . 73
Installation ............................................................................................................................. 73
Replacing the Height Control Valve ..................................................................................... 73
Removal ................................................................................................................................ . 73

TABLE OF CONTENTS
- 4 -
Installation ............................................................................................................................. 74
Replacing the Sway Bar and Components ......................................................................... 74
Vertical Linkage Removal ..................................................................................................... 74
Vertical Linkage Installation ................................................................................................ . 74
Sway Bar Removal ................................................................................................................. 74
Sway Bar Installation ............................................................................................................ 74
Replacing the Steering Knuckle Carrier Bearings .............................................................. 75
Removal ................................................................................................................................ . 75
Installation ............................................................................................................................. 75
Replacing the Steering Gearbox/Slave Unit Assembly ...................................................... 76
Removal ................................................................................................................................ . 76
Installation ............................................................................................................................. 77
Steering Gear Poppet Readjustment .................................................................................. 77
Torque Tables ...................................................................................................................... 79
Revision History
REV ECR # DATE CHANGE DESCRIPTION BY CHK APV
J 225 20 5/31/22 Format Update, Add Preset Plus Hub information, Unit Model Options
Tables
STM GMC JAH

INTRODUCTION
- 5 -
Introduction
Service Notes
This Service Manual describes the correct service and repair procedures for the Reyco Granning ®
IFS1660S3 Independent Front Suspension model with 16,600 lbs, the IFS1700S3 Independent Front
Suspension Model with 17,000 lbs, the IFS1800S3 Independent Front Suspension Model with 18,000
lbs and the IFS2000S3 Independent
Front Suspension Model with 20,000 lbs Gross Axle Weight Rating
(GAWR). Overloading the suspension may result in adverse ride and handling characteristics.
You must read and understand all procedures and safety precautions presented in this manual
before conducting any service work on the suspension.
Proper tools must be used to perform the maintenance and repair procedures in this manual.
Some procedures require the use of special tools fo r safe and correct service. Failure to use the
proper and/or special tools when required can cause personal injury and/or damage to suspension
components.
You must follow your company safety procedures and use proper safety equipment when you
service or repair the suspension.
The information contained in this manual was current at the time of printing and is subject to
change without notice or liability.
Reyco Granning ® reserves the right to modify the suspension
and/or procedures and to change specificat ions at any time without notice
and without incurring
obligation.
Reyco Granning ® uses the following types of notices for potential safety problems and to give
info rmation that will prevent damage to equipment.
WARNING
A warning indicates procedures that must be followed exactly. Serious personal injury
can occur if the procedure is not followed.
CAUTION
A caution indicates procedures that must be followed exactly. Damage to equipment or
suspension components and personal injury can occur if the pr ocedure is not followed.
NOTE
A note indicates an operation, procedure or instruction that is important for correct
service.

IDENTIFICATION
- 6 -
Identication
The suspension model and serial number are stamped on an aluminum tag that is riveted
to the front of the suspension sub -frame assembly (Figure 1). The serial number is used by
Reyco Granning ® for control purposes and should be referred to when servicing the
suspension or requesting technical support (Figure 2).
Figure 1 - Suspension Identification Location
Figure 2 - Suspension Serial Number Tag

MODEL OPTIONS
- 7 -
Model Options
Orig inal Model Number Format R ev. 1
Model Model ID# GAWR(lb)
IFS1660S3 IFS1660S3 -[Options] 16,600
IFS1800S3
IFS1800S3 -[Options]
18,000
IFS2000S3 IFS2000S3 -[Options] 20,000
Original Model Options Key R ev. 1
Option Disc
Brakes
Height Control
Valve
Sensor Height
Control
Sway
Bar
Bilstein
Shocks
Koni
Shocks
Original
System
Std
Dual
Std
Single
w/-SB
Dual
-SHC
Single
w/-SHCSB -SB
Std -F
Rev 1 Example :
ModelNumberFormat R ev. 2
Model Model ID# GAWR
(lb)
Wheel
Cut
IFS1700S3 IFS17S3 -##### 17,000 58°
IFS2000S3
IFS20S3 -#####
20,000
58°
Options Key R ev. 2
Current
System
Disc
Brakes
Model ID# Sux Position
1st - Height Control System
2nd - Stabilizer
3rd
4th - Shock Absorbers
1 2 3 4 5 S N 1 or 2 1 2 3
Option STD
Single
Valve
Dual
Valve
Single
Sensor
Dual Sensor
Hadley
Dual Sensor
Valid
Sway
Bar
No Sway
Bar
Steering
Shaft Kit
Hardware
Only
Bilstein Koni
1) A ‘0’ in Su x Positions 1,3, or 4 indicates “None”
2) Not all Combinations of Options are Valid Model ID’s, Contact RG Sales and/or Engineering for
Availability
3) 5
th
digit denotes non - serviceable options and is purposely excluded from this Table
REV 2 Examp le:
IFS1660 S3 -SB
16,600 lb
S3
3rd Gen
Integrated Steering GB
-SB
Swaybar
Single HCV
IFS1701- 1 S A B 2
17,000 lb 1
Height Control
S
Swaybar
A
Steering Kit
B
Shock
Absorber
2
Base Unit &
Misc

MODEL OPTIONS
- 8 -
Current ModelNumberFormat R ev. 3
Model Model ID# GAWR(lb)
IFS1701 S3 IFS17 01S3 -##### 17,000
IFS20 S3 IFS20S3 -##### 20,000
Current ModelNumberFormat R ev. 3
Current
System
Disc
Brakes
Model ID# Su  x Position
1
st
- Height Control System 2nd - Stabilizer
3rd and 4 th -
Shock Absorber
5th –
Wheel Cut
1 2 3 4 5 S N AA AB AC AD 1 2
Option STD
Single Valve Dual Valve Single Sensor Dual Sensor Hadley Dual Sensor Valid
Sway Bar
No Sway Bar Bilstein Variant 50° 55°
1) A ‘0’ in Su x Positions 1,3, or 4 indicates “None”
2) Not all Combinations of Options are Valid Model ID’s, Contact RG Sales and/or Engineering for
Availability
3) 5
th
digit denotes non - serviceable options
REV 3 Examples :
IFS20S3- 1 S AA 2
20,000 lb
1
Height
Control
S
Swaybar
AA
Shock
Absorber
2
Wheel Cut

VEHICLE TOWING INFORMATION
- 9 -
Vehicle Towing Information
If a vehicle is disabled and needs to be towed by the front end to service center,
check the OEM/Coach Builder towing procedures for the recommended method.
Check with local authorities and Department of Transportation (DOT) for
permissible towing methods before towing. Some states do not permit towing by
chains and/or straps.
The preferred towing apparatus is the type that cradles the front tires. If the
towing apparatus cannot be attached to the front tires or directly to the chassis
frame rails, then the suspension sub -frame may be used for attachment
.
WARNING
Attaching towing equipment to improper locations and failure to utilize OEM/Coach
Builder recommended towing methods could result in one or more of the following:
··Loss of vehicle control.
··Possible disconnection from tow vehicle.
··Damage to
the suspension and/or vehicle.
Do NOT attach tow apparatus (hooks, chains, straps, etc.) to suspension upper and lower
control arms, sway bar and brackets, brake components, tie rods, steering arms, or
steering knuckle carrier assemblies
(Figure 3) .
Figure 3 - Improper Tow Equipment Attachment Locations

MAINTENANCE SCHEDULE
- 10 -
Maintenance Schedule
GENERAL
MAINTENANCE SERVICE TO BE PERFORMED MILEAGE IN THOUSANDS
12 24 36 48 60 72 84 96
S t ee r in g A r m B a ll J o i n t s
Check axial endplay X
X
2
Inspect for ruptured seals X X X X X X X
X2
Check that cotter pin is installed X X X X X X X
X2
Control Arm Bushings
Check bolt torque X
X
2
Inspect for contact between control arm and
mount
X X X X X X X X
2
Inspect for bushing wear X X X X X X X
X2
Tie Rod Ends
Inspect ball socket endplay X X X X X X X
X2
Check for looseness of taper connection X X X X X X X
X2
Check that cotter pin is installed X X X X X X X
X2
Brake System Inspect for air leaks using soapy water solution X
Air Springs
Inspect for proper clearance (1” minimum all
around)
X
Check upper mount nut and lower mount bolt
torque
X
Inspect for signs of chafing or wear X X X X X X X
X
2
Inspect for air leaks using soapy water solution X
Height Control Valve and
Linkage
Inspect for signs of bending, binding, or slippage X X X X X X X X
2
Inspect for air leaks using soapy water solution X
Shock Absorbers
Check mounting nut torque X
Inspect shocks for signs of fluid leak, broken eye
ends, loose fasteners, or worn bushings
X X X X X X X X2
Kingpins
Check for wear X
X
2
Inspect vertical endplay X
X
2
Steering Arm Bearings
Check nut torque X
X2
Inspect bearings for excessive radial play X X X X X X X
X2
Carrier Bearings Check axial endplay
X2
Wheels
Check bearing endplay X
X2
Check wheel nut torque
1
X X X X X X X
X2
Front Alignment Inspect toe -in
3
X X X
X2
Air Fittings and Air Lines
Inspect for air leaks using soapy water solution X
Inspect for signs of chafing, cracking, or wear X X X X X X X
X2
Sway Bar Bushings
Check mounting bolt torque X
X2
Inspect for bushing wear X X X X X X X
X2
1. Wheel nuts must be re - tightened to proper torque specifications as per the vehicle or chassis manufacturer’s
Owner Guide.
2.
Continue to perform specified maintenance every 12,000 miles or at previous interval.
3.
Final stage manufacturer should complete toe - in inspection and adjustment after completion of vehicle.

MAINTENANCE REORD
- 11 -
Maintenance Record
Name of Owner Address of Owner
Date of Purchase Name and Address of Dealer
Model of Vehicle Vehicle Identification Number
Suspension Model Number:
IFS S3 -
(See Serial Tag)
Suspension Serial Number:
Inspection and Maintenance Item Date Mileage Service Performed

PARTS LIST
- 12 -
Part List
Unit Assembly - IFS1660S3 & IFS1700S3
Unit Assembly Rev. 1 and 2
Refer to model option identication section for correct REV
* Sway Bar Units (S) have a single (L) HCV/HCS, Non Sway Bar Units (N) have Dual (R&L) HCV/HCS
** Reyco Granning ® assumes no responsibility for ride control on units built without shocks, C ontact the Chassis Builder for
shock
specification and support.
***Image shown may dier slightly from actual unit
IFS1660S3 & IFS1700S3
Item Part No. Description Item Part No. Description
1
709736 -01 Sub Frame 41.25” Side Rail (IFS1700S3 -11) 9 705620 -01 Idler Arm
709736 -02
Sub Frame 39.63” Side Rail ( IFS1700S3 -23 )
10
705275 -01/02
HCV Assy (Std Single or Dual)*
2 700944 -01 Lower Control Arm Assembly 705535 -01/02 Electronic Sensor (Hadley Single or Dual)*
3
700973 -01
Tie Rod Assembly (LH)
705535 -03
Electronic Sensor (Dual Valid)*
4 703182 -01 Upper Control Arm Assembly 11 N/A HCV Linkage Assy Included in Item 10
5
705633 -01
Carrier Assembly (LH)*
12
702030 -01
Relay Rod
6 705633 -02 Carrier Assembly (RH)* 13 705480 -01 Assembly, Wheel End and Brakes (LH)
7
705951 -01
Air Spring Assembly
14
705480 -02
Assembly, Wheel End and Brakes (RH)
8
None 4th Sux Code 1 or 0**
15 705800 -01 Height Control Valve Arm (LH)
712220 -01
Hardware Only (Sux Code 1)
16
705800 -02
Height Control Valve Arm (RH)
712791 -02
Shock Absorber Bilstein 46mm CV (Sux
Code 2)
17
714691 -01 Assembly, Gearbox (IFS16/1700S3 -11)
712220 -03
Koni 91 Series (Sux Code 3)
714693 -01
Assembly, Gearbox (IFS1700S3 -23)
712220 -04
Shock Absorber Bilstein 60mm (Sux Code
4)
18 N/A N/A***
19
700973 -02
Tie Rod Assembly (RH)

PARTS LIST
- 13 -
Unit Assembly – IFS1800S3 & IFS2000S3
IFS1800S3 & IFS2000S3
I
tem Part No. Description Item Part No. Description
1
710353 -01 Sub Frame 41.25” Side Rail ( IFS2000S3 -01 )
10
705275 -01/02 HCV Ass y (Standard Single or Dual)*
710353 -02 Sub Frame 39.63” Side Rail ( IFS2000S3 -02 ) 705535 -01/02 Electronic Sensor(Hadley -Single or Dual)*
2 705847 -01 Lower Control Arm Assembly 705535 -03 Electronic Sensor (Dual Valid)*
3 700973 -01 Tie Rod Assembly (LH) 11 N/A HCV Linkage Ass y Included in Item 10
4 705849 -01 Upper Control Arm Assembly 12 702030 -01 Relay Rod
5
705853 -01 Carrier Assembly (LH) (IFS2000S3 -01) 13 708177 -01 Assembly, Wheel End and Brakes (LH)
709183 -01 Carrier Assembly (LH) (IFS2000S3 -02) 14 70 8177 -02 Assembly, Wheel End and Brakes (RH)
6
705853 -02 Carrier Assembly (RH) (IFS2000S3 -01) 15 705800 -01 Height Control Valve Arm (LH)
709183 -02 Carrier Assembly (LH) (IFS2000S3 -02) 16 705800 -02 Height Control Valve Arm (RH)
7 705951 -01 Air Spring Assembly
17
714692 -01 Assembly, Gearbox (IFS2000S3 -01)
8
None 4
th
Sux Code 1 or 0** 714694 -01 Assembly, Gearbox (IFS2000S3 -02)
712220 -01 Hardware only 18 714696 -01 Assembly, Slave, Gearbox
712220 -02 Shock Absorber Bilstein 46mm CV (Sux Code 2) 19 708177 -02 Tie Rod Assembly (RH)
712220 -03 Shock Absorber KONI 90 Series (Sux Code 3)
712220 -04 Shock Absorber Bilstein 60mm (Sux Code 4)
* Sway Bar Units (S) have a single (L) HCV/HCS, Non Sway Bar Units (N) have Dual (R&L) HCV/HCS
** Reyco Granning ® assumes no responsibility for ride control on units built without shocks, Contact the Chassis Builder for
shock
specification and support.

PARTS LIST
- 14 -
Unit Assembly – IFS 1701S3
Unit Assembly Rev. 3
Refer to model option identication section for correct REV
IFS1701S3
Item Part No. Description Item Part No. Description
1
709736 -02 Cradle
10
705275 -01 Single HCV Assembly ( 1
st
Sux Code 1) *
2
700944 -01 Lower Control Arm Assembly 705275 -02 Dual HCV Assembly ( 1
st
Sux Code 2) *
3 700973 -01 Tie Rod Assembly (LH) 705535 -01 Single Hadley Electroni c Sensor(1
st
Sux Code 3)*
4 703182 -01 Upper Control Arm Assembly 705535 -02 Dual Hadley Electronic Sensor (1
st
Sux Code 4)*
5 705633 -01 Carrier Assembly (LH) 705535 -03 Dual Valid Electronic Sensor (1
st
Sux Code 5)*
6 705633 -02 Carrier Assembly (RH) 11 703915 -01 HCV Linkage (Included in Item 10)
7 705951 -01 Air Spring Assembly 12 702030 -01 Relay Rod
8
713967 -AA
Shock Absorber Bilstein (3
rd
& 4
th
Sux Code
AA)
13 705480 -01 Assembly, Wheel End and Brakes (LH)
713967 -AB
Shock Absorber Bilstein (3
rd
& 4
th
Sux Code
AB)
14 705480 -02 Assembly, Wheel End and Brakes (RH)
713967 -AC
Shock Absorber Bilstein (3
rd
& 4
th
Sux Code
AC)
15 706899 -01 Height Control Valve Arm (LH)
713967 -AD
Shock Absorber Bilstein (3
rd
& 4
th
Sux Code
AD)
16 706899 -01 Height Control Valve Arm (RH)
9 705620 -01 Idler Arm 17 714693 -01 Assembly, Gearbox
18 N/A N/A***
19 700973 -02 Tie Rod Assembly (RH)
*Sway Bar Units (S) have a sing le (L) HCV/HCS, Non Sway Bar Units (N) have Dual (R&L) HCV/HCS
** Reyco Granning ® assumes no responsibility for ride control on units built without shocks, Contact the Chassis Builder for
shock
specification and support.
***Image shown may dier slightly from actual unit

PARTS LIST
- 15 -
Unit Assembly - IFS20S3
Unit Assembly Rev. 3
Refer to model option identication section for correct REV
*Sway Bar Units (S) have a single (L) HCV/HCS, Non Sway Bar Units (N) have Dual (R&L) HCV/HCS
** Reyco Granning ® assumes no responsibility for ride control on units built without shocks, Contact the Chassis Builder for
shock
specification and support.
IFS20 S3
Item Part No. Description Item Part No. Description
1
710353 -02 Cradle
10
705275 -01 Single HCV Assembly ( 1st Sux Code 1) *
2
705847 -01 Lower Control Arm Assembly
705275 -02 Dual HCV Assembly ( 1st Sux Code 2) *
3
708177 -01
Tie Rod Assembly (LH)
705535 -01
Single Hadley Electronic Sensor (1st Sux Code 3)*
4
705849 -01
Upper Control Arm Assembly
705535 -02
Dual Hadley Electronic Sensor (1st Sux Code 4)*
5 709183 -01 Carrier Assembly (LH)
705535 -03 Dual Valid Electronic Sensor (1st Sux Code 5)*
6 709183 -02 Carrier Assembly (RH) 11 703915 -01 HCV Linkage ( Included in Item 10 )
7
705859 -01
Air Spring Assembly
12
705867 -01
Relay Rod
8
713967 -AA
Shock Absorber Bilstein (3rd & 4th
Sux Code AA)
13 705480 -01 Assembly, Wheel End and Brakes (LH)
713967 -AB
Sho ck Absorber Bilstein (3rd & 4
th
Sux Code AB)
14 705480 -02 Assembly, Wheel End and Brakes (RH)
713967 -AC
Shock Absorber Bilstein (3rd & 4th
Sux Code AC)
15 705800 -01 Height Control Valve Arm (LH)
713967 -AD
Shock Absorber Bilstein (3rd & 4th
Sux Code AD)
16 705800 -02 Height Control Valve Arm (RH)
17
710180 -01
Assembly, Gearbox
18
700973 -02
Assembly, Slave, Gearbox
19 708177 -02 Tie Rod Assembly (RH)

PARTS LIST
- 16 -
Control Arm Components
Control Arm Components
Item
Part No. Description
Item
Part No. Description
1703182 -01
Upper Control Arm Assembly* 7 293 Socket Set Screw 10 -24 x .38”
705849 -01 Upper Control Arm Assembly** 8701683 -04 Hardened Flat Washer, 7/8”
2700944 -01
Lower Control Arm Assembly* 9100039 -P1 Hex Head Bolt 3/4 -10 x 2.75 GR 8 ZN*
705847 -01 Lower Control Arm Assembly** 705829 -01 Socket Head Cap Screw 7/8 -9 X 2.75 PH**
3700245 -01 Boss, Eccentric 10 702516 -02 Hex Head Bolt 1 1/8 -12 x 7.75 GR 8 ZY
4 8490 Spacer 11 168 Hardened Flat Washer, 1 1/8”
5 292 Hex Head Bolt 7/8 -9 x 8.50 GR 8 ZN 12 166 Lock Nut 1 1/8 -12 GR . C
6100122 -P1 Lock Nut 7/8 -9” GR . C
*Used with IFS1660S3/1700S3 /1701S3 Units
**Used with IFS1800S3/2000S3 /IFS20S3 Units

PARTS LIST
- 17 -
Control Arm Components Subassemblies
Control Arm Assemblies – All Revs
IFS1660S3/IFS1700S3/IFS1701
Item Part No. Description
1
703181 -01
Upper Control Arm (LH)/ (RH )
2 700939 -01 Lower Control Arm (LH)/ (RH )
3
8382
Bushing
IFS1800S3/IFS2000S3/IFS20S3
Item
Part No.
Description
1705850 -01 Upper Control Arm (LH)/ (RH )
2
705848 -01
Lower Control Arm (LH)/ (RH )
38382 Bushing

PARTS LIST
- 18 -
Steering Components (IFS1660S3/IFS1700S3)
Unit Assembly REV 1 and 2
Refer to model option identication section for correct REV
Steering Components (IFS1660S3/IFS1700S3)
Item Part No. Description Item Part No. Description
10 714691 -01 * TRW TAS85 Steering Gearbox
25 705620 -01 Idler Arm Assembly (Includes Items Below)
714693 -01** TRW TAS85 Steering Gearbox 25.1 700951 -01 Machined Idler Arm Casting
11 710174 -01 Bleed Line Assembly 25.2 705382 -01 40mm Ball Joint
12 714579 -01
Bulkhead Assembly 25.3 7348 Bearing Pivot Shaft
714597 -01 Bulkhead Lock Nut 25.4 701378 -01 Sealed Ball Bearing
13 714578 -01 Cap 25.5 6966 External Snap Ring Ø1 -3/4
14 710281 -01 Pitman Arm 25.6 8654 Bearing Shaft Shim .004
15 709309 -01 Gearbox Mount (LH) 26 702030 -01 Relay Rod
16 713070 -01 Steering Gearbox/Shock Mounting Plate (LH) 27 705382 -02 Slotted Nut M20 - x 1.5
17
701671 -01
Hex Head Bolt 3/4 -10 x 4.50 GR 8 ZN
28
705382 -03
Cotter Pin
18 103003 Hardened Flat Washer 3/4 29 103712 Tie Rod End (RH)
19 208 Flange Lock Nut 3/4 -10 GR. G, ZN 30 6632 Tie Rod Clamp
20 709386 -01 Hex Head Bolt 7/8 -14 x 2.00 GR 8 ZN 31 700971 -01 Tie Rod Tube
21 713454 -17 Nord -Lock Washer, Ø7/8 32 103736 Tie Rod End (LH)
22 709388 -01 Hex Head Bolt 3/4 -16 x 1.50 GR 8 ZN 33 167 Hex Head Bolt 1.0 -14 X 6 GR 8 ZY
23
8223752
Hex Head Bolt 3/4 -16 x 2.00 GR 8
34
2571
Hardened Flat Washer Ø1
24 705382 -01 40mm Ball Joint 35 89422312 Lock Nut 1 -14 GR C Phos & Oil
36 713454 -14 Nord -Lock Washer, Ø3/4
*IFS1600S3/IFS1700S3 -11
**IFS1700S3 -23
K705382 – 40mm Ball Joint Kit K710622 – Idler Arm Bearing Kit
Item
Part No. Description Qty Part No. Description Qty
24 705382 -01 40mm Ball Joint 1 89422312 Lock Nut 1 -14 1
27 705382 -02 Slotted Nut M20 - x 1.5 1 167 HHB 1 -14 1
28 705382 -03 Cotter Pin 1 8654 Bearing Shaft Shim .004 4
6966 External Snap Ring Ø1 -3/4 2
712869 -01 Friction Washer 2
701378 -01 Sealed Ball Bearing 2
7348 -050 Spacer Sleeve 1
D710623 Bearing Replacement
Instructions
1