Infiniti 54010-AM804 Front Spring

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These vehicles are equipped with shock absorber/coil spring assemblies. It is possible to replace the shocks or springs individually, but the unit will have to be disassembled by a qualified repair shop with the proper equipment. This will add considerable cost to the project. You can compare the cost of replacing the complete assemblies yourself to the cost of replacing individual components (with the help of a shop). For removal: Loosen the front wheel lug nuts. If you're working on an AWD model, also loosen the driveaxle/hub nut. Raise the front of the vehicle and support it securely on jackstands. Remove the front wheels. Remove the lower engine splash shield. Remove the ABS wheel speed sensor harness and brake hose bracket from the shock absorber. On 2007 and later G35 Sedan models, detach the stabilizer bar link from the control arm. On 2007 and later G35 Sedan models with AWD, remove the front driveaxle and separate the upper control arm from the steering knuckle. Remove the lower mounting fasteners attaching the shock absorber to the lower control arm. Mark the relationship of the shock absorber to the shock tower, remove the upper mounting fasteners, then remove the shock absorber assembly. On 350Z models, remove the shock tower bar (above the shock absorbers in the engine compartment) to remove the shock absorber upper mounting fasteners. Inspect the shock absorber for leaking fluid, dents, cracks, and other damage. Inspect the coil spring for chips and cracks which could cause premature failure. Inspect the spring seats for hardness and general deterioration. If any of the components of the assembly are worn or damaged, have the unit serviced by a qualified repair shop or replace it. For installation: Installation is the reverse of removal. Tighten the mounting fasteners to the specified torque. Raise the lower control arm with a floor jack to simulate normal ride height before tightening the shock absorber lower mounting fasteners. Tighten the wheel lug nuts to the specified torque.