Chevrolet 15820927 Rear Suspension Trailing Arm Assembly

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Installation is the reverse of removal, with all fasteners tightened to torque specifications. A front wheel alignment check and adjustment are recommended.

Detach the ABS wheel speed sensor harness from the arm, and remove the trailing arm-to-knuckle bolts. Remove the trailing arm bracket-to-body bolts and remove the arm. If the bushing needs replacement, seek professional assistance.

To remove Trailing Arm 1, start by loosening the rear wheel lug nuts and blocking the front wheels. Then, raise the rear of the vehicle and support it securely on jackstands. Remove the rear wheels and the rear portion of the exhaust system. Detach the stabilizer bar link from the stabilizer bar and remove the ABS wiring harness clips from the arm if equipped. Remove the mounting fasteners for both trailing arms at the rear knuckle and detach both arms from the knuckle. Detach the hydraulic brake line from the top of the rear suspension support and place a floor jack beneath the rear suspension support. Raise it until it just contacts the support at its center. Remove the mounting bolts for the rear suspension support on the same side that the arm is being removed from and loosen the mounting bolts on the opposite side of the support. Slowly lower the rear suspension support with the floor jack to get access to the trailing arm's mounting fasteners. Place a jack stand under the rear suspension support and remove the floor jack. Remove the mounting fasteners that hold the trailing arm to the rear suspension support and inspect the trailing arm bushings for signs of deterioration. If needed, take the arm to have the bushings replaced. For Trailing Arm 2, follow the same steps as Trailing Arm 1. To remove the Trailing Arm, remove the trailing arm bracket-to-body mounting bolts and the trailing arm-to-knuckle mounting fasteners. Then, remove the trailing arm and inspect the trailing arm bushing for signs of deterioration. If needed, have the bushing replaced.

After that, remove the fasteners that attach the control arm to the subframe and separate the control arm from the subframe.

To remove Suspension Arm 1, you need to detach the rear portion of the exhaust system, disconnect the stabilizer bar link, remove the ABS wiring harness clips, and detach the hydraulic brake line.

To remove Suspension Arm 1, you need to detach the rear portion of the exhaust system, disconnect the stabilizer bar link, remove the ABS wiring harness clips, and detach the hydraulic brake line. Then, place a floor jack beneath the rear suspension support, raise it slightly, and remove the mounting bolts for the rear suspension support. Lower the support to gain access to the suspension arm's mounting fasteners, and finally, remove the arm and inspect the bushings for deterioration.

For inspection, check the control arm for distortion and the bushings for wear, replacing any worn or damaged parts. Do not attempt to straighten a bent control arm. If the bushings are cracked or show signs of wear, take the control arm to have the bushings replaced.