Nissan 55020-1AA0A Spring-Rear Suspension

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If the struts or coil springs are leaking perhaps from the damper, show reduced damping potential or physical damage such as chipped or cracked then all options must be kept on the table as work begins. Some strut assemblies are pre-assembled with springs; in such cases these may be obtained on an exchange basis which can be a useful time saving combination. However, it is recommended to check for the prices and the availability of the parts before dismantling the vehicle irrespective of the chosen strategy. First, disconnect the strut and spring assembly, then clamp it in a wooden vise, pulling the assembly very tightly but not too tightly. In compliance with the instructions handed by the tool manufacturer, fit a spring compressor to ease the pressure on the upper spring seat; this is evidenced by some vibrations of the spring. Subsequently, take off the piston rod nut and the upper suspension support; to test the bearing should turn smooth and the rubber should be checked for signs of wear. Raise the spring seat as well as upper insulator off the piston rod, examine the rubber spring seat that was beneath for damages. After that, slowly take the compressed spring out of the assembly and unlock the dust boot on the piston rod, and look for the signs of wear on the lower insulator if necessary, replace it. For reassembly, if replacing the lower insulator, install it to the correct position and contract the damper rod to install the dust boot. Position the coil spring on lower insulator such a way that one end of the spring is in the right place to fit in. Place the upper insulator and spring seat in the same way noting the outward mark or arrows and fix the dust seal and suspension support on the piston rod. Last of all tighten the nut to the correct torque and then replace the strut/shock absorber and coil spring.

Remove the cowl cover for access to the top of the struts, support the strut and spring assembly with one hand, and remove the three upper mounting bolts before taking the assembly out from the fenderwell.

Position a floor jack under the lower rear suspension arm and raise it slightly.