I have a '50 3100 with a '53 235, a 1985 T5 transmission, and a 2001 Nissan Xterra rear end. These mods were surprisingly easy to make. The Nissan rear end comes with the 6 lug Chevy bolt pattern, the correct width, and limited slip rear axle. The parking brake arrangement makes for a very simple hook up with the stock assembly. One issue with it however, is that it has a 4.64 to 1 gear ratio. Just make sure that the transmission that you choose has a .72 to 1 fifth gear ratio (overdrive).
