got an 88 5.0 LX with a rear end upper control arm bushing that has eaten itself. is replacing this going to be a bitch? i would really like to change them myself, but im not too proud to let a pro do it. i have jack stands, a floor jack, a driveway, and a saturday. anyone have any tips? any special bushings to use, or will the 10.99 napa ones do?