After placing your vehicle on jackstands, first unlatch the trunk trim and take out the two mount bolts for the strut. First, remove two new 15mm nuts that secure the lower strut mount. Then, use a ball joint removal tool to remove the rod links while pulling the lower ball joint free, after which you can remove the 10mm nut and ball joint nut. Drop the suspension with its bolt removed, pulling the strut off the vehicle. Using the manufacturer's guidelines, install a spring compressor on the coil spring while holding stable the strut in a vice. Start by squeezing the spring, taking off the self-locking nut from the strut, breaking apart the strut mounts, and removing the coil spring. Check the strut mounts to see if they are damaged or worn out and replace broken pieces. To put the spring in place, you need new locking nuts for the rear struts first. Put the spring compressor on the coil spring, then set the spring onto the strut assembly flat side up. Begin by adding the strut mount and washer to the strut, and fasten the self-locking nut manually to 22 ft. pounds before releasing the spring compressor. Put the strut back into place, set the bottom bolt on loosely, and tighten the top strut mounting bolts to 28 foot pounds. Link up the upper arm and knuckle, fasten the upper ball joint nut to between 29 and 35 foot pounds. Lift the suspension with a floor jack until the strut supports the vehicle's weight, then clamp down the lower bolt to 47 foot pounds. Complete your work by putting back the rear wheels, lower the car down, and tighten the new numbers first with 80 foot-pound-force. Then put on the trunk piece, and ensure your rear wheels are still correctly aligned.