GM 84076742 Absorber Assembly, Rear Shock (W/ Upper Mount)

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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.

Lightly lubricate the strut rod and bumpers with silicone oil or white lithium grease. Then, install the lower spring seat, bump stop, dust boot, spring, and upper mount seat in that order.

Guide the assembly into the fender well, insert the upper mounting studs through the holes in the body, and install the nuts without tightening them. Use a jack to position the steering knuckle, and install the two lower mounting bolts and nuts. Align the strut with the mark on the knuckle and tighten the nuts to the specified torque.

Replace them as a set if necessary.