*** edit, meant 1964..Just want to make sure before I order a gear install kit, is the 64 chevelle 8.2 10 bolt the same as the 65-72 units? I noticed the upper control arm bushings are smaller on the 64, just wanted to make sure the internals were not different as well. I have a 3:08 gear and want to install 3:73s on the same carrier and use new bearings and seals.