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The content of this article/image reflects the changes identified in TSB

Bulletin No.: 06-03-08-002

Date: March 09, 2006

SERVICE MANUAL UPDATE

Subject:
Revised Upper Control Arm Replacement

Models:
2003-2006 Cadillac Escalade Models
2003-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe Models
2003-2006 GMC Sierra, Yukon Models
2003-2006 HUMMER H2


Use of special tool J 42188-B eliminates the need to remove the wheel drive shaft on 4WD models.

Upper Control Arm Replacement (Escalades, Avalanche, Silverado, Sierra, Suburban, Tahoe, Yukons)

Tools Required

J 42188-B Ball Joint Separator

Removal Procedure


1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

3. Disconnect the electronic suspension control (ESC) link rod from the sensor, if equipped. Refer to Front Position Sensor Link Assembly - Electronic Suspension in Electronic Suspension Control.





4. Remove the retaining bolt for the brake hose and the wheel speed sensor brackets.





5. Remove the upper ball joint retaining nut.

6. Disconnect the upper control arm from the steering knuckle using the J 42188-B.





7. Remove the upper control arm nuts and the adjustment cams (2) for the 15 Series 2WD, 4WD, and 25/35 Series 2WD.

8. Remove the upper control arm bolts (4) for the 15 Series 2WD, 4WD, and 25/35 Series 2WD.





9. Remove the upper control arm nuts and the adjustment cams (2) for the 25/35 Series 4WD.

10. Remove the upper control arm bolts (4) for the 25/35 Series 4WD.

11. Remove the upper control arm.



Installation Procedure

1. Install the upper control arm.





2. Install the upper control arm bolts (4) for the 25/35 Series 4WD.

Note:
Refer to Fastener Notice in Cautions and Notices.

3. Install the upper control arm nuts and the adjustment cams (2) 25/35 Series 4WD.
Tighten the nuts to 190 N.m (140 lb ft).





4. Install the upper control arm bolts (4) for the 15 Series 2WD, 4WD, and 25/35 Series 2WD.

5. Install the upper control arm nuts and the adjustment cams (2) for the 15 Series 2WD, 4WD, and 25/35 Series 2WD.
Tighten the nuts to 190 N.m (140 lb ft).

6. Connect the upper control arm to the steering knuckle.





7. Install the new nut to the upper ball joint stud.
Tighten the nut to 50 N.m (37 lb ft).





8. Install the retaining bolts for the brake hose and wheel speed sensor brackets.

Tighten
Tighten the bolts to 9 N.m (80 lb in).

9. Connect the ESC link rod to the sensor, if equipped.

10. Install the tire and wheel.

11. Remove the safety stands.

12. Lower the vehicle.

13. Verify the wheel alignment.