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Front Suspension System: Specifications GMC Sierra III

Suspension Front 5 illustrations

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Front Lower Control Arm Ball Stud Nut
First Pass50 N.m37 lb ft
Final PassPlus 130 degrees
Front Lower Control Arm Bolt175 N.m129 lb ft
Front Shock Absorber Bolt50 N.m37 lb ft
Front Shock Absorber Nut50 N.m37 lb ft
Front Shock Absorber Stud Nut50 N.m37 lb ft
Front Stabilizer Shaft Clamp Bolt50 N.m37 lb ft
Front Stabilizer Shaft Link Nut23 N.m17 lb ft
Front Upper Control Arm Ball Stud Nut
First Pass50 N.m37 lb ft
Final PassPlus 100 degrees
Front Upper Control Arm Nut190 N.m140 lb ft
Front Wheel Hub and Bearing Assembly Bolt180 N.m133 lb ft

Fastener Tightening Specifications

Scheme 1

Scheme 1: Stabilizer Shaft Replacement
Scheme 1: Stabilizer Shaft Replacement
CalloutComponent Name
Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the front stabilizer shaft links. Refer to Stabilizer Shaft Link Replacement . Remove the front stabilizer shaft insulators. Refer to Stabilizer Shaft Insulator Replacement .
1Front Stabilizer Shaft

Stabilizer Shaft Replacement

Scheme 2

Scheme 2: Stabilizer Shaft Link Replacement
Scheme 2: Stabilizer Shaft Link Replacement
CalloutComponent Name
Preliminary Procedure Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (6-Lug Wheel) .
1Front Stabilizer Shaft Link Nut CAUTION: Refer to Fastener Caution . Procedure Remove all traces of the original adhesive patch. Apply NEW threadlocker on the threads of the bolt. Refer to . Tighten 23 N.m (17 lb ft)
2Front Stabilizer Shaft Link Bolt
3Front Stabilizer Shaft Link Washer (Qty: 2)
4Front Stabilizer Shaft Link Insulator (Qty: 4)
5Front Stabilizer Shaft Link Spacer
CAUTION
Refer to Fastener Caution .

Stabilizer Shaft Link Replacement

Scheme 3

Scheme 3: Stabilizer Shaft Insulator Replacement
Scheme 3: Stabilizer Shaft Insulator Replacement
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the steering gear skid shield. Refer to Steering Gear Skid Shield Replacement .
1Front Stabilizer Shaft Clamp Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 50 N.m (37 lb ft)
2Front Stabilizer Shaft Clamp
3Front Stabilizer Shaft Insulator NOTE: Ensure the slit in the front stabilizer shaft insulator is facing toward the front of the vehicle when installed.
CAUTION
Refer to Fastener Caution .
NOTE
Ensure the slit in the front stabilizer shaft insulator is facing toward the front of the vehicle when installed.

Stabilizer Shaft Insulator Replacement

Scheme 4

Scheme 4: Steering Knuckle Replacement
Scheme 4: Steering Knuckle Replacement
CalloutComponent Name
Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (6-Lug Wheel) . Remove the front wheel hub and bearing assembly from the steering knuckle. Refer to Front Wheel Hub, Bearing and Seal Replacement .
1Steering Knuckle Procedure Disconnect the steering linkage outer tie rod from the steering knuckle. Refer to Steering Linkage Outer Tie Rod Replacement . Disconnect the upper control arm from the steering knuckle. Refer to Upper Control Arm Replacement . Disconnect the lower control arm from the steering knuckle. Refer to Lower Control Arm Replacement . Verify the wheel alignment. Refer to Wheel Alignment Specifications (Regular Cab) , Wheel Alignment Specifications (Crew Cab) , Wheel Alignment Specifications (Extended Cab) .

Steering Knuckle Replacement

Scheme 5

Scheme 5: Upper Control Arm Replacement
Scheme 5: Upper Control Arm Replacement
CalloutComponent Name
Preliminary Procedures Remove the front shock absorber nuts. Refer to Shock Absorber and Spring Removal and Installation . Remove the front wheel speed sensor wiring harness from the steering knuckle. Refer to Front Wheel Speed Sensor Replacement .
1Front Upper Control Arm Ball Stud Nut CAUTION: Refer to Fastener Caution . Procedure Use a suitable jack stand to support the lower control arm. Use the CH-42188-B separator to separate the front upper control arm ball stud from the steering knuckle. Remove and discard the front upper control arm ball stud nut. Replace with NEW only. Tighten 50 N.m (37 lb ft) + 100 degrees Special Tools CH-42188-B Ball Joint Separator For equivalent regional special tools, refer to Special Tools .
2Front Upper Control Arm Nut (Qty: 2) Tighten 190 N.m (140 lb ft)
3Front Upper Control Arm Adjust Cam (Qty: 4)
4Front Upper Control Arm Bolt (Qty: 2) Procedure Pull the front shock absorber assembly down and reposition as necessary to gain the clearance to remove the front upper control arm bolts.
5Front Upper Control Arm Procedure Verify the wheel alignment. Refer to Wheel Alignment Specifications (Regular Cab) , Wheel Alignment Specifications (Crew Cab) , Wheel Alignment Specifications (Extended Cab) .
CAUTION
Refer to Fastener Caution .

Upper Control Arm Replacement

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