Since our original cross-shafts were looking a little rough, we bought a set of new shafts, then took them and the control arms to a local shop for installation. Here, Jim Kelly of Port Orange Auto Repair in Florida installs the cross-shafts into our McGaughy's tubular control arms with new bushings, also from McGaughy's. This part of the job is best left to the pros. If you don't know exactly what you're doing, you can bend the ears of the control arms, and forever doom yourself to an out-of-alignment front end. Make sure you have your cross-shafts labeled for which side they go on. While the upper shafts on a Tri-Five are symmetrical, the lower shafts are left/right specific.