On the 57" springs are the bushings the same as GM? We have not chatted in awhile so here are some updates on my truck. The 400/205 are in, swap was not that bad but I have to drop the t case a little since I do have a little vibration. I have about 15 miles on it and I blew the rear main seal out by the looks of it. /forums/images/icons/shocked.gif I gained 10" of length in the rear drive shaft.