Lincoln DG9Z-5560-S Rear Spring

If equipped, remove the height sensor arm bracket retaining bolt and set the height sensor out of the way before working on any suspension components. Any rear suspension fasteners should be replaced with new fasteners on assembly and should only be tightened with the hub raised to a height of 15.5 inches from the hub center to the center of the fenderwell lip. Begin by loosening the wheel lug nuts, raising the vehicle, and securely supporting it on jackstands while blocking the front wheels to prevent rolling. Remove the wheel, then support the lower control arm with a floor jack positioned underneath the coil spring pocket. Support the trailing arm with another floor jack; if another floor jack is unavailable, remove the caliper and hang it out of the way with a length of wire. Disconnect the stabilizer bar link and remove the lower control arm outboard bolt. Lower the trailing arm slowly with the floor jack until the coil spring is extended, marking the position of the coil spring to the spring insulators. Check the spring for cracks and chips, replacing the springs as a set if any defects are found, and also check the upper insulator for damage and deterioration, replacing it if necessary. Installation is the reverse of removal, ensuring to position the lower end of the coil spring in the depressed area of the trailing arm, using new fasteners and tightening all fasteners to the proper torque specifications.

Reassembly is a reversal of dismantling, noting the following points. The coil springs must be installed with the paint mark at the bottom. Make sure that the coil spring ends are correctly located in the upper and lower seats before releasing the compressor. When installing the spring, make sure the ends fit into the recessed portion of the seats. Tighten the piston rod nut to the specified torque.