GMC 25822945 Rear Shock Absorber Assembly

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To replace the shock absorber on a vehicle, start by blocking the front wheels and raising the rear of the vehicle with jackstands. Remove the wheel and support the rear lower control arm with a floor jack. Then, remove the shock absorber upper mounting nut and bolt, followed by the lower nut and bolt. Once the shock absorber is removed, installation is the reverse of removal. Raise the lower control arm with a floor jack to simulate normal ride height and tighten the fasteners to the proper torque specifications. Finally, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque.

Tighten the top nuts to the proper torque, reconnect the stabilizer bar link to the strut, and reconnect the wheel speed sensor harness.

The steering linkage and suspension components.

Hold the strut piston rod with a wrench while unscrewing the nut, avoiding the use of an impact wrench. Then, remove the upper mount, spring, boot, bump stop, and lower spring seat in that order.

Remove the wheel and support the rear lower control arm with a floor jack.

Replace them as a set if necessary.

It is important to replace components on both sides of the vehicle simultaneously to maintain balanced characteristics.

Tighten the top nuts to the proper torque, reconnect the stabilizer bar link to the strut, and reconnect the wheel speed sensor harness. Install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque. Finally, have the front end alignment checked and adjusted if necessary.