STEERTEK NXT High Capacity
Steer Axle System for Autocar®
ACX-XPEDITOR™ Vehicles
SUBJECT: Service Instructions
LIT NO: 17730-297
DATE: August 2018
REVISION: A

TABLE OF CONTENTS
Section 1

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

Section 2

Product Description . . . . . . . . . . . . . . . . . 3

Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Section 3

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

Shock Absorbers. . . . . . . . . . . . . . . . . . . . . 30

Section 4

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Leaf Spring and Clamp Group Assembly . . . 30

Section 5

Special Tools . . . . . . . . . . . . . . . . . . . . . . 10

Clamp Group components . . . . . . . . . . . . . 33

Section 6

Towing Procedures . . . . . . . . . . . . . . . . . 11

STEERTEK NXT High Capacity Axle. . . . . . . . 34

Section 7

Preventive Maintenance

Steering Knuckle. . . . . . . . . . . . . . . . . . . . . 36

Component Inspection . . . . . . . . . . . . . . . . 13

Kingpin Bushing . . . . . . . . . . . . . . . . . . . . . 38

Lubrication Intervals . . . . . . . . . . . . . . . . . . 14

Tie Rod Ends and Cross Tube. . . . . . . . . . . . 47

Kingpin Lubrication. . . . . . . . . . . . . . . . . . . 14

Section 10 Alignment Specifications . . . . . . . . . . . 50

Tie Rod End Lubrication . . . . . . . . . . . . . . . 15

Section 11 Troubleshooting Guide. . . . . . . . . . . . . . 51

Tie Rod End. . . . . . . . . . . . . . . . . . . . . . . . . 15

Section 12 Torque Specifications. . . . . . . . . . . . . . . 52

Clamp Group Re-Torque Interval . . . . . . . . . 17

Section 13 Reference Material. . . . . . . . . . . . . . . . . 54

Steering Knuckle. . . . . . . . . . . . . . . . . . . . . 18
Kingpin Bushing . . . . . . . . . . . . . . . . . . . . . 19
Shock Absorbers. . . . . . . . . . . . . . . . . . . . . 20
Tire Inspection. . . . . . . . . . . . . . . . . . . . . . . 20

Section 8

Alignment & Adjustments
Alignment Definitions . . . . . . . . . . . . . . . . . 22
Inspection Prior to Alignment. . . . . . . . . . . . 24
Front Wheel Alignment . . . . . . . . . . . . . . . . 25
Steering Stop . . . . . . . . . . . . . . . . . . . . . . . 27
Toe Setting . . . . . . . . . . . . . . . . . . . . . . . . . 27

Section 9

Component Replacement

STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ 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 STEERTEK NXT High Capacity Steer
Axle System for applicable Autocar® ACX-XPEDITOR™ 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 STEERTEK NXT High Capacity Steer Axle System.
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.

Introduction

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STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles

SECTION 2

Product Description
Hendrickson’s STEERTEK NXT High Capacity Steer Axle System — STEERTEK NXT High Capacity
is durable and lightweight alternative to forged I-beam axles. Optimized performance and integrated with Hendrickson spring and elastomer technology, STEERTEK NXT achieves complete
suspension and axle system efficiency. The unique design provides up to 60 pounds of weight
savings compared to traditional forged I-beam axles. Continuous beam architecture minimizes
stress points for added durability. STEERTEK NXT High Capacity is rated for 100% off-highway use.
Knuckle Assembly — Removable kingpin design helps reduced maintenance. Premium kingpin
bushings and seals provide enhanced protection from the elements to improve bushing life.
Multiple Axle Configurations — Single or twin steer applications, deep or standard drop, wide or
narrow track, flexible spring seat centers and multiple steering arm and tie rod arm configurations.
FIGURE 2-1

TECHNICAL NOTES
1. The 20,000 pound capacity STEERTEK NXT High Capacity system is approved for 100% OFF-highway
usage. Other applications must be pre-approved by both Hendrickson and vehicle manufacturer. The system has a 20,000 pound capacity with load ratings up to 24,000 pound in certain applications. System
capacity represents maximum loads on tires at ground level.
2. The STEERTEK NXT system is available with 69.02" and 70.89" Intersections (KPI).
3. The STEERTEK NXT system offers 3.74" and 5.00" axle beam drop height. Axle beam drop is measured from
the kingpin intersection to the top of the axle.
4. Integrated system is anti-lock braking system (ABS) ready. This system is compatible with industry standard
wheel ends and brakes.
5. The STEERTEK 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

STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ 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.
The warnings and cautions 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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STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles
■■

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.
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.
REPAIR OR RECONDITIONING
THE REPAIR OR RECONDITIONING OF SUSPENSION OR AXLE COMPONENTS IS NOT ALLOWED AS
SHOWN ON LABEL IN FIGURE 3-1. 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.
SUPPORT THE VEHICLE PRIOR TO SERVICING
PLACE THE VEHICLE ON A LEVEL FLOOR AND CHOCK THE WHEELS TO HELP PREVENT THE VEHICLE
FROM MOVING. NEVER WORK UNDER A RAISED VEHICLE SUPPORTED ONLY BY A FLOOR JACK. ALWAYS
SUPPORT A RAISED VEHICLE WITH SAFETY STANDS. BLOCK THE WHEELS AND MAKE SURE THE UNIT
WILL NOT ROLL BEFORE RELEASING BRAKES. A JACK CAN SLIP OR FALL OVER. SERIOUS PERSONAL
INJURY CAN RESULT.
MODIFYING COMPONENTS
DO NOT MODIFY OR REWORK PARTS WITHOUT AUTHORIZATION FROM HENDRICKSON. 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.
SHOCK ABSORBERS
THE SHOCK ABSORBERS ARE NOT SUPPLIED BY HENDRICKSON, ALTHOUGH IT IS A REQUIRED
COMPONENT. HENDRICKSON IS NOT RESPONSIBLE FOR COMPONENTS SUPPLIED BY THE VEHICLE
MANUFACTURER. FOR ASSISTANCE WITH INSPECTION, MAINTENANCE AND REBUILD INSTRUCTIONS,
SEE VEHICLE MANUFACTURER.
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

STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles
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.
IMPROPER JACKING METHOD
IMPROPER JACKING METHOD CAN CAUSE STRUCTURAL DAMAGE AND RESULT IN LOSS OF VEHICLE
CONTROL, SEVERE PERSONAL INJURY OR DEATH. DO NOT USE AXLE BEAM OUTBOARD OF AXLE SEATS.
REFER TO VEHICLE MANUFACTURER FOR PROPER JACKING INSTRUCTIONS, SEE FIGURE 3‑1.
FIGURE 3-1

DAMAGED AXLE COMPONENTS
IF A VEHICLE EQUIPPED WITH A STEERTEK 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 SUCH
ADJACENT PARTS AND THE COMPLETE AXLE ASSEMBLY.
CONTACT HENDRICKSON TECH 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.
PROCEDURES AND TOOLS
A MECHANIC 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.

Important Safety Notice

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STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles
OFF-ROADWAY TOWING
WHEN A VEHICLE IS DISABLED AND EQUIPPED WITH A STEERTEK 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 FRONT STEERTEK NXT SYSTEM, (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 FRONT STEERTEK NXT
SYSTEM 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

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 THE 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.
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.

17730-297

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Important Safety Notice

STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles

SECTION 4

Parts List

Parts List

8

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STEERTEK NXT High Capacity Steer Axle System for Autocar® ACX-XPEDITOR™ Vehicles

KEY NO. PART NO.
DESCRIPTION

VEHICLE
QTY.

Clamp Group Assembly, Includes Key Nos. 1-11
79272-001 Left Hand
79272-002 Right Hand
34013-228
Clamp Group Fasteners Service Kit, One Side
Includes Key Nos. 1-2, 4
1
64107-002
1"-8 UNC x 7" Hex Bolt
2
78356-002
1" Spherical Washer
3
78888-000
Top Pad with Jounce Stop
4
79273-001
Spring Liner
5
Leaf Spring Assembly with Bushings
53816-100 Left Hand
53816-200 Right Hand
6
77458-001
Spring Spacer
7
77232-000
Axle Seat
34013-229
Axle Clamp Collar Service Kit, One Side
Includes Key Nos. 8-11

Axle Collar
8
*Non Threaded
9
*Threaded
10
78887-001
Axle Seat Liner
11
*1"-8 UNC x 6½" Hex Cap Bolt
77360-XXX
STEERTEK NXT High Capacity Axle, Includes
Key Nos. 12-48, see Chart below
12
77284-006
Axle Assembly

Knuckle Assembly, Includes Key Nos.
21, 24, 30-33
13
77243-001 Left Hand
14
77243-002 Right Hand
15
77337-001
Steering Arm
16
30550-027
1"-14 UNF x 3½" Hex Bolt
17
22962-051
1" Flat Washer
34013-230
Kingpin Service Kit, One Side
Includes Key Nos. 18-29, 41-42
18
75923-001
Kingpin
19
Kingpin Shim (As needed for service)
77241-002 0.01" Thickness
77241-003 0.02" Thickness
20
75918-001
Thrust Bearing
21
75966-001
Kingpin Seal

KEY NO. PART NO.
DESCRIPTION

VEHICLE
QTY.

Kingpin Bushing
22
75919-001 Lower - 2½" Length
23
75919-002 Upper - 2" Length
24
77209-001
Grease Cap
25
68303-004
O-Ring

Kingpin Draw Key
26
75925-001 Upper - 33⁄8" Length
27
75925-002 Lower - 4¾" Length
7⁄16" Flat Washer
28
22962-054
7⁄16"-14 UNC-2B Nut
29
17700-008
5⁄8"-11 UNC-2B Jam Nut
30
17491-023
5⁄8"-11 UNC x 1½" Set Screw
31
80183-000
32
33117-000
Grease Zerk
33
64246-000
ABS Sensor Sleeve
34
79367-000
Spindle Locknut
35
79368-000
Spindle Lock Washer
36
79369-000
Spindle Washer
37
79370-000
Spindle Nut
77244-XXX
Tie Rod Arm Assembly, 9" Wide Wheel,
Includes Key No. 40, see Chart below
38
Left Hand
39
Right Hand
40
33117-000
Grease Zerk
7⁄8"-14 UNF x 3½" Hex Bolt
41
30418-007
7⁄8" Flat Washer