The rear shocks are very straight forward to replace. The rear bushings are harder. The rear trailing arm bushings are mounted on the rear axle and reaquire a special tool to remove and replace. Check the archives on making your own tool. The bushings on the front of my trailing arms were fine at over 200,000 miles so your's may be also. The bushings on the torque arms and the track rod need to be pushed out with a shop press. I did mine with a Harbor Freight 12 ton press but I wished that I had bought the 20 ton size instead. It might just be better to take the arms and rod to a machine shop and pay them to press out the old bushings and press in the new.