- •GENERAL INFORMATION
- •FRONT SUSPENSION
- •STEERING KNUCKLE
- •LOWER CONTROL ARM
- •DRIVESHAFTS
- •FRONT SUSPENSION SERVICE PROCEDURES
- •WHEEL ALIGNMENT
- •WHEEL ALIGNMENT SERVICE PROCEDURE
- •STRUT DAMPER ASSEMBLY
- •REMOVAL
- •INSPECTION
- •INSTALLATION
- •DISASSEMBLY (STRUT DAMPER)
- •ASSEMBLE (STRUT DAMPER)
- •SUSPENSION COIL SPRINGS
- •SPRING RETAINER UPPER
- •SPRING SEAT LOWER
- •SHOCK ABSORBERS (Strut Damper)
- •INSPECTION
- •LOWER CONTROL ARM
- •REMOVAL (ASSEMBLY)
- •INSTALLATION (ASSEMBLY)
- •LOWER CONTROL ARM PIVOT BUSHINGS
- •LARGE BUSHING
- •SMALL BUSHING
- •SMALL BUSHING
- •LARGE BUSHING
- •BALL JOINTS
- •INSPECTION BALL JOINT WEAR
- •BALL JOINT REMOVAL
- •BALL JOINT INSTALLATION
- •BALL JOINT SEAL INSTALLATION
- •SWAY BAR
- •REMOVAL
- •INSPECTION
- •INSTALLATION
- •KNUCKLE (FRONT SUSPENSION)
- •REMOVAL
- •INSTALL
- •HUB AND BEARING ASSEMBLY
- •REMOVAL
- •INSTALLATION
- •DRIVESHAFTS
- •GENERAL INFORMATION
- •DRIVESHAFT IDENTIFICATION
- •SERVICE PROCEDURES
- •DRIVESHAFTS, REMOVE INSTALL
- •HUB NUT REMOVAL
- •DRIVESHAFT ASSEMBLIES REMOVE
- •HUB NUT INSTALL
- •DRIVESHAFT RECONDITIONING PROCEDURE
- •DISASSEMBLE
- •TRIPOD REMOVAL FROM INTERCONNECTING BAR
- •INSPECT TRIPOD AND HOUSING
- •DISASSEMBLE
- •WEAR SLEEVE
- •INSPECT
- •ASSEMBLE
- •INTERMEDIATE SHAFT ASSEMBLY RECONDITION
- •INTERMEDIATE SHAFT ASSEMBLY
- •UNIVERSAL JOINT AND ROLLER
- •INTERMEDIATE SHAFT ASSEMBLY
- •BOOTS INSPECT
- •BOOTS INSTALL
- •DAMPER WEIGHTS
- •DRIVESHAFT POSITIONING SPECIFICATIONS
- •REAR SUSPENSION
- •GENERAL INFORMATION
- •SHOCK ABSORBERS
- •REMOVAL
- •INSPECTION
- •INSTALLATION
- •COIL SPRINGS AND JOUNCE BUMPER
- •REMOVAL
- •INSTALLATION
- •REMOVAL
- •INSTALLATION
- •PIVOT BUSHING AC AND AY BODY
- •REMOVE FROM VEHICLE
- •PIVOT BUSHING INSTALLATION
- •PIVOT BUSHING AC AG AJ AP BODY
- •REMOVE FROM VEHICLE
- •PIVOT BUSHING INSTALLATION
- •REAR AXLE ASSEMBLY
- •REMOVE
- •INSTALLATION
- •AUTOMATIC AIR LOAD LEVELING SYSTEM
- •GENERAL INFORMATION
- •MAJOR COMPONENTS
- •COMPRESSOR ASSEMBLY
- •CONTROL MODULE
- •HEIGHT SENSOR
- •AIR LINES AND FITTINGS
- •COMPRESSOR RELAY
- •AIR ADJUSTABLE SHOCK ABSORBERS
- •AIR DRYER
- •LEAK CHECKS
- •SYSTEM OPERATION
- •RAISING VEHICLE HEIGHT
- •LOWERING VEHICLE HEIGHT
- •COMPRESSOR PERFORMANCE TEST
- •SERVICE PROCEDURES
- •COMPRESSOR ASSEMBLY
- •AUTOMATIC AIR LOAD LEVELING SYSTEM WIRING SCHEMATIC
- •AUTOMATIC AIR LOAD LEVELING SYSTEM WIRING SCHEMATIC
- •REAR LEVELING DIAGNOSTIC PROCEDURES
- •BEFORE DIAGNOSTICS TEST
- •TEST LAMP PIN OPERATION
- •AFTER COMPLETION OF REPAIRS
- •TEST WEIGHT
- •DIAGNOSTICS (TO START PROCESS)
- •IGNITION
- •OPERATION
- •AUTOMATIC AIR LOAD LEVELING DIAGNOSTICS
- •AUTOMATIC AIR LOAD LEVELING DIAGNOSTICS
- •AUTOMATIC AIR LOAD LEVELING DIAGNOSTICS
- •AUTOMATIC AIR LOAD LEVELING DIAGNOSTICS
- •AUTOMATIC AIR LOAD LEVELING DIAGNOSTICS
- •CONTROL MODULE
- •REMOVAL
- •INSTALLATION
- •COMPRESSOR RELAY
- •REMOVAL
- •INSTALLATION
- •REMOVAL
- •INSTALLATION
- •AUTOMATIC AIR SUSPENSION
- •GENERAL INFORMATION
- •FRONT AND REAR AIR SPRINGS
- •HEIGHT SENSOR
- •CONTROL MODULE
- •COMPRESSOR ASSEMBLY
- •COMPRESSOR AIR DRYER
- •AIR LINES
- •AIR LINE FITTINGS
- •AIR CHECK, RESIDUAL
- •COMPRESSOR PERFORMANCE TEST
- •AIR LEAK CHECK
- •SYSTEM OPERATION
- •ENGINE RUN OPERATION
- •ENGINE OFF OPERATION
- •LONG TERM IGNITION OFF OPERATION
- •SYSTEM OPERATION INHIBITORS
- •SYSTEM FAILURES
- •SAFETY CONCERNS
- •SHIPPING MODE
- •DIAGNOSIS
- •INITIAL DIAGNOSTIC CHECK
- •DIAGNOSTICS PROCEDURES
- •HEIGHT SENSOR CHECK
- •HEIGHT SENSOR LOGIC CHART
- •AUTOMATIC AIR SUSPENSION DIAGNOSTICS
- •AUTOMATIC AIR SUSPENSION DIAGNOSTICS
- •AUTOMATIC AIR SUSPENSION DIAGNOSTICS
- •AUTOMATIC AIR SUSPENSION DIAGNOSTICS
- •SERVICE PROCEDURES
- •CONTROL MODULE (ASCM)
- •COMPRESSOR RELAY
- •COMPRESSOR ASSEMBLY
- •AIR DRYER
- •SOLENOIDS (STRUTS AND AIR SPRINGS)
- •REMOVAL
- •INSTALL
- •RECHARGE AIR SPRING
- •AIR SPRINGS REAR
- •REMOVAL
- •INSTALLATION
- •REMOVAL
- •INSTALLATION
- •REAR (STUB) AXLE ALIGNMENT ALL MODELS
- •GENERAL INFORMATION
- •REAR WHEEL ALIGNMENT
- •INSTALLATION OF REAR ALIGNMENT SHIMS
- •SPECIFICATIONS
- •ALIGNMENT SPECIFICATIONS AT CURB HEIGHT
2 - 52 SUSPENSION/DRIVESHAFTS
to the road surface. While being able to twist as one wheel moves vertically with respect to the other.
Roll resistance is provided partly by the axle's resistance to twist. But primarily by a torque tube or rod (depending on the suspension option called for) running through the channel and attached rigidly to its end plates by welding. Because the torque tube/rod is an integral part of the axle assembly, it cannot be individually replaced.
The spindles are bolted to the axle end (spindle mounting) plates and can be individually replaced if required. Rear wheel alignment changes require the use of shims between the spindle and axle end plates.
SHOCK ABSORBERS
REMOVAL
(1)Raise vehicle, see Hoisting, Group 0.
(2)Support axle and remove wheel and tire assem-
bly.
(3)If equipped with air shocks, disconnect air lines.
(4)Remove upper and lower shock absorber fasteners, remove shock absorbers (Fig. 2).
Fig. 2 Remove/Install Shock Absorber Fasteners
INSPECTION
Inspect for evidence of fluid leakage from upper end of reservoir. (Actual leakage will be a stream of fluid running down and leaking off lower end). Slight seepage is not unusual and will not effect performance.
Ä
INSTALLATION
(1)Position shock absorber on car. Install upper and lower fasteners loosely to hold shock absorber in place.
(2)Tighten upper fastener to 61 NIm (45 ft. lbs.) torque. Connect air line, if so equipped.
(3)Install wheel and tire assembly, tighten wheel stud nuts to 129 NIm (95 ft. lbs.) torque. Lower vehicle to ground.
(4)With suspension supporting the weight of the
vehicle. Tighten lower shock absorber fastener to 54 NIm (40 ft. lbs.) torque.
COIL SPRINGS AND JOUNCE BUMPER
REMOVAL
(1)Lift vehicle see hoisting Group 0.
(2)Support axle assembly and remove both lower shock absorber attaching bolts.
(3)Lower axle assembly until spring and spring upper isolator can be removed (Fig. 3). Do not stretch brake hose.
(4)Remove two screws holding cup to rail (Fig. 1). Remove assembly.
Fig. 3 Coil Spring & Jounce Bumper
INSTALLATION
(1)Position cup to rail. Install and tighten attaching bolts to 8 NIm (70 in. lbs.) torque.
(2)Install isolator over jounce bumper and install spring.
(3)Raise axle and loosely assemble both shock absorber to axle mounting bolts. Remove axle support and lower vehicle.
(4)With suspension supporting the weight of the
vehicle. Tighten both shock absorber attaching bolts to 61 NIm (45 ft. lbs.) torque.