GM 25831693 Rear Shock Absorber Assembly

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If the struts or coil springs show signs of wear such as leaking fluid, loss of damping capability, chipped, sagging or cracked coil springs, it is important to explore all options before starting any work. The strut coil spring components cannot be serviced and must be replaced if there is a problem. However, there may be strut assemblies available that come complete with springs on an exchange basis, which can save time and effort. Before disassembling the vehicle, it is recommended to check the cost and availability of parts. To disassemble the strut and spring assembly, the strut clevis bracket portion should be mounted in a vise. A spring compressor should be installed on the spring following the manufacturer's instructions to relieve pressure from the upper spring seat. The damper shaft nut should be unscrewed while holding the damper shaft from turning. The nut and upper mount should be removed and laid out in the order they were removed. The rubber portion of the upper mount should be checked for cracking and deterioration, and replaced if necessary. The upper spring seat should be removed from the damper shaft and the rubber portion should be inspected for cracking and hardness. The bearing in the spring seat should also be checked for smooth operation. The dust boot and rubber bump stop should be slid off the damper shaft and checked for cracking and deterioration, with replacement if needed. The compressed spring should be carefully lifted from the assembly and set aside. To reassemble, the damper rod should be extended and the rubber bump stop and dust boot should be installed. The compressed coil spring should be placed onto the lower seat of the damper, with the end of the spring against the raised stop. The upper insulator and spring seat should be installed, followed by the upper mount and mounting nut, which should be tightened to the proper torque specifications. The spring compressor tool can then be removed, and the strut spring assembly can be installed.

Mark the relationship of the strut to the knuckle.

To install the new shock absorbers, you simply need to reverse the removal steps and tighten the bolts to the specified torque.