The shock assembly must be taken out of the vehicle before disassembly and assembly and the coil spring should be compressed with the Pentastar Service Equipment (PSE) tools W-7200 or a similar tool, following the instructions in the manual. Always mark the shock and coil spring so that you know which goes back where during installation. After setting the lower hooks and the clamp onto the lower end of the coil spring in the compressor, position the shock assembly there, with the shock in place. Then, remove the nut from the top of the shock shaft. Get rid of all spring tension and then, using a Snap-On A136 or an equivalent, prevent the shock rod from moving while you remove the retainer. Disconnect the upper bushing retainer washer, remove the clamp on the bottom coil spring, take off the shock absorber together with its lower spring isolator, jounce bumper, cup, dust boot and last washer. When reinstalling the coil spring, lower mounting bracket, rod bushings, lower coil spring isolator or lower control arm, refer to the spring compressor position of the lower coil spring end. On open removing port of the compressor is facing upward. Open the port and release the tension on the coil spring. Take out the rod from the spring compressor and uninstall the upper (soft portion) and lower (hollow sleeve) isolator bushings from the shock bracket. Open the lower shock rod by removing the bushing retainer washer, dust shield, cup, jounce bumper and spring isolator from the shock absorber. Check every component to see if it is damaged and update it if you see any issues. The upper coil spring isolator should be installed on the upper mounting bracket first, with the sleeve going into the lower shock absorber rod isolator bushing after. Fit the spring compressor under the coil spring with it in the original orientation, then put the upper mounting bracket on top of the spring. We need to compress the coil spring, fit the lower spring isolator end first to the shock absorber and then install the jounce bumper pointed end up. Add the collar to the shock absorber rod, the dust shield and then the cup, making certain the cup is touching the collar. Add the lower shock rod bushing retainer washer, slip the shock into position at the bottom of the coil spring until it hits its seat. Fasten the shock absorber to the coil spring by using a clamp, set the upper shock rod bushing retainer washer over it so that the concave part faces upward and tighten the shock assembly retainer nut with 45 Nm (33 ft. lbs.) torque using a suitable socket. Delicately take the tension off the coil spring, checking that the upper mounting bracket, isolator and coil spring are properly aligned, remove the clamp and shock assembly from the mount and slide the shock assembly back onto the car.