GM 21019028 Front Suspension Strut Kit

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For this procedure, a spring compressor is necessary and can typically be rented from auto parts stores or equipment yards. If the struts or coil springs show signs of wear, such as leaking fluid, loss of damping ability, or damaged coil springs, it's essential to explore repair options before starting work. Strut and coil spring assemblies are non-serviceable and must be replaced if issues arise. Complete strut assemblies, including springs, might be available for exchange, which can save time and effort. Prior to disassembly, it's crucial to check the cost and parts availability. To begin disassembly, remove the strut and spring assembly and securely mount the strut clevis bracket in a vise, taking care not to damage any other parts and using wood or rags to protect the unit. Follow the spring compressor's manufacturer instructions to install it on the spring, compressing it until all pressure is relieved from the upper spring seat. Hold the damper shaft with a socket and remove the damper shaft nut, along with the upper mount. Lay out the removed parts in the correct order and inspect the rubber portion of the upper mount for cracks or deterioration, replacing if necessary. Remove the upper spring seal, checking the rubber portion for damage and the bearing for smooth operation, replacing them as needed. Slide the rubber bump stop off the damper shaft and inspect it for deterioration, replacing if necessary. Carefully lift the compressed spring from the assembly and set it aside, making sure to mark the springs as LEFT and RIGHT if disassembling both struts. For reassembly, extend the damper rod, install the rubber bump stop, and place the compressed coil spring onto the lower seat of the damper, ensuring the end rests against the raised stop. Install the upper insulator, spring seat, upper mount, and mounting nut, then tighten it to the specified torque. Finally, remove the spring compressor tool and reinstall the strut/spring assembly.

Extend the damper rod, install the rubber bump stop, and place the compressed coil spring onto the lower seat of the damper, ensuring the end rests against the raised stop. Install the upper insulator, spring seat, upper mount, and mounting nut, then tighten it to the specified torque.

After installing these components, you should place the compressed coil spring onto the lower seat, ensuring it rests at the lowest part.

Loosen the wheel lug nuts, raise the vehicle and support it securely on jackstands. Remove the wheel. Disconnect the stabilizer bar link from the strut, then remove the brake hose from the struts brake hose bracket. On models equipped with ABS, remove the ABS harness from the same bracket. Mark the relationship of the strut to the knuckle(these marks will be used during installation to ensure the camber is returned to its original setting). Remove the strut-to-knuckle nuts and knock the bolts out with a hammer and punch. Separate the strut from the steering knuckle. Be careful not to overextend the inner CV joint. Also, don't let the steering knuckle fall outward, as the brake hose could be damaged. Support the strut and spring assembly with one hand and remove the upper mounting nut, then remove the assembly from the fenderwell. Check the strut body for leaking fluid, dents, cracks and other obvious damage that would warrant repair or replacement. Check the coil spring for chips or cracks in the spring coating. Inspect the spring seat for cuts, hardness and general deterioration. If any undesirable conditions exist, proceed to the strut disassembly procedure. Guide the strut assembly up into the fenderwell and insert the upper mounting stud through the hole in the shock tower. Once the stud protrudes from the shock tower, install the nut so the strut won't fall back through. This is most easily accomplished with the help of an assistant, as the strut is quite heavy and awkward. Slide the steering knuckle into the strut flange and insert the two bolts. Install the nuts, align the marks you made, then tighten the nuts to the specific torque. Reattach the brake hose to the strut bracket and reconnect the stabilizer bar link. If equipped, install the speed sensor wiring harness to the strut bracket. Install the wheel and lug nuts, then lower the vehicle and tighten the lug nuts to the specific torque. Tighten the upper mounting nut to the specific torque. Have the front wheel alignment checked and, if necessary, adjusted.

Have the front wheel alignment checked and, if necessary, adjusted.

Loosen the shock carrier-to-body upper mounting bolts and remove the shock.

During disassembly, various components need to be removed, including the upper cup, insulator, top carrier, lower insulator, sleeve, lower cup, and bump stop.

Loosen the upper mounting bolts and remove the shock absorber/coil spring assembly.