As you can tell by now, most of this install is simple remove-and-replace work. However, there is always at least one bump in the smoothest of roads. In this case, it was still an R&R job, but removing the stock upper rearend bushing is quite simply a pain. It basically came down to drilling and hammering it out, but it wasn’t pretty. When it comes to installing the UPR spherical housing bushings, it’s recommended that you freeze the new bushing overnight before you install it. This shrinks the bushing a bit, which eases the ingress.