Install the trailing-arm bolts with long-tip needle-nose pliers. It'seasier to install the shims after the trailing-arm bolts are in. Ifyou're using rubber bushings, don't tighten the trailing-arm bolts untilthe vehicle is at ride height. Urethane bushings rotate like a bearingand can be tightened as soon as they're installed. Rubber bushings havelimited movement and should be tightened in their center of travel forlong life.