AIRTEK® NXT for Freightliner
Cascadia® Vehicles
SUBJECT: Service Instructions
LIT NO: 17730-307
DATE: May 2018 REVISION: A
TABLE OF CONTENTS
Section 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2

Section 2

Product Description . . . . . . . . . . . . . . . . . 2

Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Section 3

Important Safety Notice. . . . . . . . . . . . . . 4

Height Control Valve . . . . . . . . . . . . . . . . . . 35

Section 4

Special Tools . . . . . . . . . . . . . . . . . . . . . . . 9

Air Spring . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Section 5

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 10

Shock Absorber. . . . . . . . . . . . . . . . . . . . . . 37

Section 6

Towing Procedures . . . . . . . . . . . . . . . . . 12

Section 7

Preventive Maintenance
Component Inspection . . . . . . . . . . . . . . . . 14
Lubrication Intervals . . . . . . . . . . . . . . . . . . 15
Kingpin Lubrication. . . . . . . . . . . . . . . . . . . 15
Tie Rod End Lubrication . . . . . . . . . . . . . . . 16
Tie Rod End Inspection . . . . . . . . . . . . . . . . 16
Clamp Group U-bolt Locknuts
Re-torque Interval. . . . . . . . . . . . . . . . . . 19

Component Replacement

Rear Shackle. . . . . . . . . . . . . . . . . . . . . . . . 38
Leaf Spring and Clamp Group Assembly . . . 39
Spring Eye Bushings. . . . . . . . . . . . . . . . . . 41
Clamp Group Components . . . . . . . . . . . . . 46
Rubber Bump Stop . . . . . . . . . . . . . . . . . . . 48
STEERTEK NXT Axle . . . . . . . . . . . . . . . . . . . 48
Tie Rod Ends and Cross Tube. . . . . . . . . . . . 59

Section 10 Plumbing Diagram . . . . . . . . . . . . . . . . . 61
Section 11 Torque Specifications. . . . . . . . . . . . . . . 62

Steering Knuckle Inspection . . . . . . . . . . . . 19

Section 12 Troubleshooting Guide. . . . . . . . . . . . . . 64

Kingpin Bushing Inspection. . . . . . . . . . . . . 20

Section 13 Alignment Specifications. . . . . . . . . . . . 66

Axle Wrap Liner Inspection . . . . . . . . . . . . . 21

Section 14 Reference Material. . . . . . . . . . . . . . . . . 67

Shock Absorber Inspection . . . . . . . . . . . . . 21
Tire Inspection. . . . . . . . . . . . . . . . . . . . . . . 23

Section 8

Section 9

Alignment & Adjustments
Alignment Definitions . . . . . . . . . . . . . . . . . 25
Ride Height Verification. . . . . . . . . . . . . . . . 27
Inspection Prior to Alignment. . . . . . . . . . . . 29
Front Wheel Alignment . . . . . . . . . . . . . . . . 30
Steering Stop . . . . . . . . . . . . . . . . . . . . . . . 32
Toe Setting . . . . . . . . . . . . . . . . . . . . . . . . . 32
Spring Eye Re-torque. . . . . . . . . . . . . . . . . . 34

AIRTEK® NXT for Freightliner Cascadia® Vehicles
SECTION 1

Introduction
This publication is intended to acquaint and assist maintenance personnel in the preventive
maintenance, service, repair and rebuild of the Hendrickson AIRTEK® NXT front steer axle and
suspension system for applicable Freightliner Cascadia® vehicles.
NOTE

Use only Hendrickson Genuine parts for servicing this suspension system.
It is important to read and understand the entire Technical Procedure publication prior to performing any maintenance, service, repair, or rebuild of the product. The information in this publication
contains parts lists, safety information, product specifications, features, proper maintenance,
service, repair and rebuild instructions for AIRTEK NXT front steer axle and suspension systems.
Hendrickson reserves the right to make changes and improvements to its products and
­publications at any time. Contact Hendrickson Tech Services for information on the latest version
of this manual at 1-866-755-5968 (toll-free U.S. and Canada), 1-630-910-2800 (outside U.S. and
Canada) or e-mail: techservices@hendrickson‑intl.com.
The latest revision of this publication is available online at www.hendrickson-intl.com.

SECTION 2

Product Description
Hendrickson’s AIRTEK® NXT — combines the STEERTEK NXT axle and air suspension technology with an advanced lightweight integrated clamp group design. The new design is lighter than
standard content to improve load capacity and help enhance fuel efficiency.
Improved ride and comfort — advanced air suspension technology assists in protecting drivers
from road irregularities and hazards.
Lightweight clamp group — Continuous beam architecture minimizes stress points for added
durability. Weighs less than original I-beam and spring clamp group.
STEERTEK NXT axle — The box-shaped cross section resists horizontal, vertical and twisting
forces more effectively than traditional I-beam axles which improves handling.
Brake Compatibility — Compatible with drum or disc brakes.
Two-piece knuckle assembly — eliminates the need to remove the kingpin to service the knuckle.
Air spring — Exclusive air springs support a majority of the load to provide a low spring rate and
to improve ride. Conventional bolt-on design provides durability.

Introduction

2

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AIRTEK® NXT for Freightliner Cascadia® Vehicles
Figure 2-1

TECHNICAL NOTES
1. The AIRTEK NXT system is approved for on-highway usage. Other applications must be preapproved by both Hendrickson and Freightliner. This system has a 12,500-13,300 pound
capacity. System capacity represents maximum loads on tires at ground level.
2. The AIRTEK NXT system is available with 70.87" Intersections (KPI).
3. The AIRTEK NXT system offers a 5.36" axle beam drop height. Axle beam drop is measured
from the kingpin intersection to the top of the axle.
4. AIRTEK NXT suspension weight includes main springs, bushings, shocks, upper shock brackets
and axle attachment hardware.
5. AIRTEK NXT system weight is based on a 5.36" drop height and a 70.87" KPI axle. Weight
includes suspension, steer axle, knuckle/steering arm assemblies and tie rod assemblies.
6. This system is anti-lock braking system (ABS) ready. This system is compatible with industry
standard wheel ends and brakes.
7. The AIRTEK NXT system product identification is etched on the front of the axle beam providing
the following information, see Figure 2-2:
■■

Axle part number: Identifies the features of the axle beam

■■

Axle assembly number: Identifies the complete assembly, which includes the steering
knuckles and bracket assemblies

Figure 2-2

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Product Description

AIRTEK® NXT for Freightliner Cascadia® Vehicles
SECTION 3

Important Safety Notice
Proper maintenance, service and repair is important to the reliable operation of the suspension.
The procedures recommended by Hendrickson and described in this technical publication are
methods of performing such maintenance, service and repair.
This technical publication should be read carefully to help prevent personal injury and to assure
that proper methods are used. Improper maintenance, service or repair may d­ amage the vehicle,
cause personal injury, render the vehicle unsafe in operation, or void manufacturer’s warranty.
Failure to follow the safety precautions in this manual can result in personal injury and/or property
damage. Carefully read and understand all safety related information within this publication, on
all decals and all such materials provided by the vehicle manufacturer before conducting any
maintenance, service or repair.
■■

Explanation of signal words

Hazard “Signal Words” (Danger-Warning-Caution) appear in various locations throughout this
publication. Information accented by one of these signal words must be observed to help minimize the risk of personal injury to service personnel, or possibility of improper service methods
which may damage the vehicle or render it unsafe.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
Additional Notes or Service Hints are utilized to emphasize areas of procedural importance and
provide suggestions for ease of repair. The following definitions indicate the use of these signal
words as they appear throughout the publication.
Indicates AN IMMINENTLY HAZARDOUS SITUATION which, IF NOT AVOIDED, WILL result in SERIOUS
injury OR DEATH.
Indicates A POTENTIAL HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, Can RESULT in SERIOUS
injury OR DEATH.
Indicates A POTENTIAL HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR or
MODERATE INJURY, or property damage.

NOTE

An operating procedure, practice condition, etc. which is essential to emphasize.

SERVICE HINT

A helpful suggestion, which will make the servicing being performed a little easier and/or faster.
Also note that particular service operations may require the use of special tools designed for
specific purposes. These special tools can be found in the Special Tools section of this p­ ublication.
The torque symbol alerts you to tighten fasteners to a specified torque value. Refer to Torque
Specifications section of this publication.

Important Safety Notice

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■■

Safety precautions

FASTENERS
DISCARD USED FASTENERS. ALWAYS USE NEW FASTENERS TO COMPLETE A REPAIR. FAILURE TO DO
SO COULD RESULT IN FAILURE OF THE PART, OR MATING COMPONENTS, loss of vehicle control,
PERSONAL INJURY, OR PROPERTY DAMAGE.
LOOSE OR OVER TORQUED FASTENERS CAN CAUSE COMPONENT DAMAGE, loss of vehicle
control, PROPERTY DAMAGE, OR SEVERE PERSONAL INJURY. MAINTAIN CORRECT TORQUE VALUE
AT ALL TIMES. CHECK TORQUE VALUES ON A REGULAR BASIS AS SPECIFIED, USING a TORQUE WRENCH
that is REGULARLY CALIBRATED.TORQUE VALUES SPECIFIED IN THIS TECHNICAL PUBLICATION ARE FOR
HENDRICKSON SUPPLIED FASTENERS ONLY. IF NON-HENDRICKSON FASTENERS ARE USED, FOLLOW
TORQUE SPECIFICATION LISTED IN THE VEHICLE MANUFACTURER’S SERVICE MANUAL.

Support the vehicle prior to servicing
PLACE THE VEHICLE ON A LEVEL FLOOR AND CHOCK THE WHEELS TO PREVENT THE VEHICLE FROM
MOVING OR ROLLING. DO NOT WORK AROUND OR UNDER A RAISED VEHICLE SUPPORTED BY ONLY
A FLOOR JACK OR OTHER LIFTING DEVICE. ALWAYS SUPPORT A RAISED VEHICLE WITH RIGID SAFETY
STANDS. FAILURE TO DO SO CAN CAUSE SERIOUS PERSONAL INJURY OR DAMAGE TO EQUIPMENT.

LOAD CAPACITY
Adhere TO THE PUBLISHED CAPACITY RATINGS FOR THE SUSPENSIONS. ADD-ON AXLE ATTACHMENTS
(I.E. SLIDING FIFTH WHEELS) AND OTHER LOAD TRANSFERRING DEVICES CAN INCREASE THE
SUSPENSION LOAD ABOVE THE RATED AND APPROVED CAPACITIES WHICH COULD RESULT IN FAILURE
AND loss of vehicle control, POSSIBLY CAUSING PERSONAL INJURY OR PROPERTY DAMAGE.

AIR SPRINGS
AIR SPRING ASSEMBLIES MUST BE DEFLATED PRIOR TO LOOSENING ANY CLAMP GROUP HARDWARE.
UNRESTRICTED AIR SPRING ASSEMBLIES CAN VIOLENTLY SHIFT. DO NOT INFLATE AIR SPRING
ASSEMBLIES WHEN THEY ARE UNRESTRICTED. AIR SPRING ASSEMBLIES MUST BE RESTRICTED
BY SUSPENSION OR OTHER ADEQUATE STRUCTURE. DO NOT INFLATE BEYOND PRESSURES
RECOMMENDED BY AIR SPRING MANUFACTURER, CONTACT HENDRICKSON TECHNICAL SERVICES
FOR DETAILS. IMPROPER USE OR OVER INFLATION MAY CAUSE AIR SPRING ASSEMBLIES TO BURST,
CAUSING PROPERTY DAMAGE AND/OR SEVERE PERSONAL INJURY.
WHEN SERVICING THE VEHICLE OR ATTACHING AN AIR SPRING AND THE VEHICLE IS ON THE GROUND,
PRIOR TO AIRING THE SUSPENSION SYSTEM MAKE CERTAIN THE AIR SPRING LOCATOR IS INDEXED
INTO THE UPPER AIR SPRING BRACKET PROPERLY, AND THE AIR SPRING IS FULLY SEATED ON THE top
pad. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PREMATURE AIR SPRING FAILURE,
CAUSE PERSONAL INJURY, OR PROPERTY DAMAGE.
PRIOR TO AND DURING DEFLATION AND INFLATION OF THE FRONT AIR SUSPENSION SYSTEM,
ENSURE THAT ALL PERSONNEL AND EQUIPMENT ARE CLEAR FROM UNDER THE VEHICLE AND
AROUND THE SERVICE AREA, FAILURE TO DO SO CAN CAUSE SERIOUS PERSONAL INJURY, DEATH,
OR PROPERTY DAMAGE.

PROCEDURES AND TOOLS
A TECHNICIAN USING A SERVICE PROCEDURE OR TOOL WHICH HAS NOT BEEN RECOMMENDED BY
HENDRICKSON MUST FIRST SATISFY HIMSELF THAT NEITHER HIS SAFETY NOR THE VEHICLE’S SAFETY
WILL BE JEOPARDIZED BY THE METHOD OR TOOL SELECTED. INDIVIDUALS DEVIATING IN ANY MANNER
FROM THE INSTRUCTIONS PROVIDED ASSUME ALL RISKS OF potential PERSONAL INJURY OR
DAMAGE TO EQUIPMENT INVOLVED.

Personnel PROTECTIVE EQUIPMENT
ALWAYS WEAR PROPER EYE PROTECTION AND OTHER REQUIRED PERSONAL PROTECTIVE EQUIPMENT
TO HELP PREVENT PERSONAL INJURY WHEN performing VEHICLE MAINTENANCE, REPAIR OR SERVICE.

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Important Safety Notice

AIRTEK® NXT for Freightliner Cascadia® Vehicles
SHOCK ABSORBERS
THE SHOCK ABSORBERS ARE THE REBOUND TRAVEL STOPS FOR THE SPRINGS. ANYTIME THE FRONT
AXLE ON the SUSPENSION IS SUSPENDED IT IS MANDATORY THAT THE SHOCK ABSORBERS REMAIN
CONNECTED. FAILURE TO DO SO COULD CAUSE THE REVERSE ARCH IN THE STEEL LEAF SPRINGS,
POSSIBLY RESULTING IN PREMATURE STEEL LEAF SPRING FAILURE.

Repair or reconditioning
THE REPAIR OR RECONDITIONING OF SUSPENSION OR AXLE COMPONENTS IS NOT ALLOWED. ANY
AXLE COMPONENTS FOUND TO BE DAMAGED OR OUT OF SPECIFICATIONS MUST BE REPLACED.
ALL MAJOR HENDRICKSON COMPONENTS ARE HEAT TREATED AND TEMPERED. The COMPONENTS
CANNOT BE BENT, WELDED, HEATED, OR REPAIRED WITHOUT REDUCING THE STRENGTH OR LIFE
OF THE COMPONENT. FAILURE TO FOLLOW THESE GUIDELINES CAN CAUSE loss of vehicle
control, POSSIBLE PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE AND WILL VOID APPLICABLE
WARRANTIES.

Axle KINGPINS
The STEERTEK NXT axle IS UNIQUE, IN THAT THE KINGPIN IS CRYOGENICALLY INSTALLED IN THE
AXLE. THE KINGPIN IS A NON-REPLACEABLE COMPONENT OF THE AXLE ASSEMBLY. DO NOT TRY TO
REMOVE THE KINGPIN. IF THE KINGPIN SHOWS SIGNS OF MOVEMENT, CONTACT HENDRICKSON TECH
SERVICES.

AXLE camber
Unauthorized welding or modifications can cause cracks or other axle structural
damage and result in loss of vehicle control, severe personal injury or death. Do not
bend, weld or modify axle without authorization from Hendrickson Truck commercial
vehicle Systems.
AXLE CAMBER IS NOT ADJUSTABLE. DO NOT CHANGE THE AXLE CAMBER ANGLE OR BEND THE AXLE
BEAM, see FIGURE 3-1. BENDING THE AXLE BEAM TO CHANGE THE CAMBER ANGLE can DAMAGE THE
AXLE AND REDUCE AXLE STRENGTH, WILL VOID HENDRICKSON’S WARRANTY and CAN CAUSE loss
of vehicle control, possibly causing personal INJURY or property damage.

MODIFYING COMPONENTS
DO NOT bend, weld, MODIFY OR REWORK PARTS WITHOUT AUTHORIZATION FROM HENDRICKSON
AS SHOWN ON LABEL IN FIGURE 3-1. DO NOT SUBSTITUTE REPLACEMENT COMPONENTS NOT
AUTHORIZED BY HENDRICKSON. USE OF MODIFIED, REWORKED, SUBSTITUTE OR REPLACEMENT
PARTS NOT AUTHORIZED BY HENDRICKSON MAY NOT MEET HENDRICKSON’S SPECIFICATIONS, AND
CAN RESULT IN FAILURE OF THE PART, loss of vehicle control, POSSIBLE PERSONAL INJURY
OR PROPERTY DAMAGE, AND WILL VOID ANY APPLICABLE WARRANTIES. USE ONLY HENDRICKSON
AUTHORIZED REPLACEMENT PARTS.
Figure 3-1

Important Safety Notice

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AIRTEK® NXT for Freightliner Cascadia® Vehicles
DAMAGED axle COMPONENTS
IF A VEHICLE EQUIPPED WITH An AIRTEK NXT system IS INVOLVED IN A CRASH, THE AXLE STEER
KNUCKLES MUST BE DISASSEMBLED AND A THOROUGH INSPECTION OF THE AXLE MUST BE
PERFORMED NOTING THE CONDITION OF THE AXLE BEAM, KINGPINS, AND KNUCKLE ASSEMBLIES,
INCLUDING THE AREAS OF AXLE TO KINGPIN INTERFACE FOR ANY DAMAGE, GAPS, KINGPIN MOVEMENT
OR PLAY. IF ANY COMPONENT APPEARS DAMAGED, OR THE KINGPINS APPEAR TO CONTAIN ANY
DAMAGE, GAPS, MOVEMENT OR PLAY, THE COMPLETE AXLE ASSEMBLY MUST BE REPLACED.
IN ADDITION, IN THE EVENT A CRASH RESULTS IN EXCESSIVE SIDE LOAD DAMAGE TO ADJACENT
PARTS, SUCH AS A BENT WHEEL, HUB, OR SPINDLE, IT IS STRONGLY RECOMMENDED TO REPLACE THE
COMPLETE AXLE ASSEMBLY.
CONTACT HENDRICKSON TECHNICAL SERVICES WITH ANY QUESTIONS. FAILURE TO REPLACE ANY
DAMAGED COMPONENTS CAN CAUSE LOSS OF VEHICLE CONTROL, POSSIBLE PERSONAL INJURY,
DEATH, OR PROPERTY DAMAGE AND WILL VOID ANY APPLICABLE WARRANTIES.

TORCH/WELDING
DO NOT USE A CUTTING TORCH TO REMOVE ANY FASTENERS. THE USE OF HEAT ON SUSPENSION
COMPONENTS WILL ADVERSELY AFFECT THE STRENGTH OF THESE PARTS. A COMPONENT DAMAGED
IN THIS MANNER can RESULT IN loss of vehicle control AND POSSIBLE PERSONAL INJURY OR
PROPERTY DAMAGE.
EXERCISE EXTREME CARE WHEN HANDLING OR PERFORMING MAINTENANCE IN THE AREA OF THE
leaf SPRING ASSEMBLY AND AXLE. DO NOT CONNECT ARC WELDING GROUND LINE TO THE leaf
SPRING ASSEMBLY OR AXLE. DO NOT STRIKE AN ARC WITH THE ELECTRODE ON THE leaf SPRING
ASSEMBLY OR AXLE. DO NOT USE HEAT NEAR THE leaf SPRING ASSEMBLY OR AXLE. DO NOT NICK
OR GOUGE THE leaf SPRING ASSEMBLY OR AXLE. SUCH IMPROPER ACTIONS CAN DAMAGE THE
leaf SPRING ASSEMBLY OR THE AXLE, AND CAN CAUSE loss of vehicle control AND POSSIBLE
PERSONAL INJURY OR PROPERTY DAMAGE.

Off-roadway TOWING
WHEN A VEHICLE IS DISABLED AND EQUIPPED WITH An AIRTEK NXT system, CARE MUST BE TAKEN
TO ENSURE THERE IS NO DAMAGE TO THE SUSPENSION OR AXLE WHEN TOWING THE VEHICLE.
THE USE OF TOW STRAPS ARE NECESSARY TO TOW A DISABLED VEHICLE from A REPAIR FACILITY
PARKING LOT INTO THE SHOP BAY. THE TOW STRAPS SHOULD BE CONNECTED TO THE TOW HOOKS
PROVIDED BY THE VEHICLE MANUFACTURER AT THE FRONT OF THE BUMPER. IF THE USE OF TOW
HOOKS IS NOT AN OPTION, THEN TOW STRAPS MAY BE WRAPPED AROUND THE AIRTEK NXT axle,
(SEE FIGURE 3-2) IN A MANNER THAT IS ACCEPTABLE FOR TOWING THE VEHICLE FROM A REPAIR
FACILITY PARKING LOT INTO THE SHOP BAY. DO NOT USE A TOW CHAIN AROUND THE AIRTEK NXT
axle TO TOW THE VEHICLE, DOING SO WILL DAMAGE THE AXLE AND Void any applicable
warranty, (SEE FIGURE 3-2). FOR DETAILED INSTRUCTIONS FOR ON-HIGHWAY TOWING, SEE
towing procedure section of this publication.
Figure 3-2

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Important Safety Notice

AIRTEK® NXT for Freightliner Cascadia® Vehicles
PARTS CLEANING
SOLVENT CLEANERS CAN BE FLAMMABLE, POISONOUS AND CAUSE BURNS. TO HELP AVOID SERIOUS
PERSONAL INJURY, CAREFULLY FOLLOW THE MANUFACTURER’S PRODUCT INSTRUCTIONS AND
GUIDELINES AND THE FOLLOWING PROCEDURE:

1. WEAR PROPER EYE PROTECTION
2. WEAR CLOTHING THAT PROTECTS YOUR SKIN
3. WORK IN A WELL VENTILATED AREA
4. DO NOT USE GASOLINE, OR SOLVENTS THAT CONTAIN GASOLINE. GASOLINE CAN EXPLODE
5. HOT SOLUTION TANKS OR ALKALINE SOLUTIONS MUST BE USED CORRECTLY. FOLLOW THE
MANUFACTURER’S RECOMMENDED INSTRUCTIONS AND GUIDELINES CAREFULLY TO HELP
PREVENT PERSONAL ACCIDENT OR INJURY
DO NOT USE HOT SOLUTION TANKS OR WATER AND ALKALINE SOLUTIONS TO CLEAN GROUND OR
POLISHED PARTS. DOING SO WILL CAUSE DAMAGE TO THE PARTS AND Void any applicable warranty.

Important Safety Notice

8

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AIRTEK® NXT for Freightliner Cascadia® Vehicles
SECTION 4

Special Tools
Rear Leaf spring bushing tools
Hendrickson Part No. 66086-303

Hendrickson Part No. 66086-304

OTC Part No. 4263 Visit otctools.com

OTC Part No. 4261 Visit otctools.com

Hendrickson Part No. 66086-305 Adapter Set

Hendrickson Part No. 66086-302

OTC Part No. 4255 Visit otctools.com

OTC Part No. 4250 Visit otctools.com
Note: In conjunction with Hendrickson Part No. 66086-304 (OTC
4261) this additional adapter tool kit is available to purchase to be
used on Hendrickson PRIMAAX EX • COMFORT AIR • V-RIDE rear air
suspensions (not needed for this front suspension).

Adjustable straight flute reamer

The dimension of cutting diameter
must facilitate a range of 1.802"-1.812"

Kingpin BUSHING and seal shop TOOLS
These shop made tools are designed to install and remove kingpin bushings. Bushing tools are made from cold rolled
steel or equivalent. Drawings are for reference only. Hendrickson does not supply these tools.

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Special Tools

AIRTEK® NXT for Freightliner Cascadia® Vehicles
SECTION 5

Parts List

Parts List

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AIRTEK® NXT for Freightliner Cascadia® Vehicles

KEY NO. PART NO.
DESCRIPTION
1

53622-000

VEHICLE
QTY.

Leaf Spring Assembly, Includes Non-serviceable
Front Spring Eye Bushing and Key No. 2
60961-867
Single Thru-Bolt Bushing Service Kit,
Includes Key No. 2 and 58
2
**Rear Spring Eye Thru-Bolt Bushing
3
78046-001
Shackle Plate
4
*M20 x 2.50-6G x 170 mm Hex Bolt
5
*M20 Flat Washer - H12
6
*M20 x 2.5 Locknut

Clamp Group & Leaf Spring Assembly
Service Kit, Includes Key Nos. 1-2, 7-8, 14-22
34013-238 390 mm Ride Height, Left Hand
34013-239 390 mm Ride Height, Right Hand
34013-240 430 mm Ride Height, Left Hand
34013-241 430 mm Ride Height, Right Hand
7
Top Pad / Shock Bracket
78030-001 Left Hand
78030-002 Right Hand
8
64080-000
Rubber Bump Stop
9
79115-002L
Air Spring Assembly, Includes Upper Fasteners
10
78762-101
Air Spring Bracket
11
68974-000
M12 x 1.75 Flange Locknut
5⁄16"-18 UNC Nut
12
17491-011
13
59169-003
Link Mount
14
75989-000
M20 x 1.5-6H Two-piece Nut
15
Dowel Pin
57159-015 ½" x 2½", 390 mm Ride Height
57159-014 ½" x 41⁄16", 430 mm Ride Height
16
77517-040
Spring Spacer, 430 mm Ride Height Only
17
78044-101
Axle Wrap
18
M20 x 1.5-6g Semi Round U-bolt
78025-175 175 mm, 390 mm Ride Height
78025-215 215 mm, 430 mm Ride Height
60961-802
Axle Clamp Service Kit, One Side,
Includes Key Nos. 19-22
19
**Axle Wrap Liner
20
**Axle Clamp, Front - Unthreaded
21
**Axle Clamp, Rear - Threaded M20 x 2.5
22
**M20 X 2.5-6G x 160 mm Hex Thru Bolt
23
59427-101L LH Height Control Valve and Linkage Assembly
59427-102L RH Height Control Valve and Linkage Assembly
24
*¼"-20 UNC x 2¼" Hex Cap Screw
25
*¼" Flat Washer
26
*¼"-20 UNC-2B Nut
27
58913-015L
Shock Absorber (538 mm Extended)
28
78047-001
LH Upper Shock Bracket
78047-002
RH Upper Shock Bracket
29
*M16 x 2.00-6G x 130 mm Bolt
30
*M16 Flat Washer
31