I have a 5 speed 1991 YJ Jeep Wrangler with a 4.2 inline 6 with an empco propane set up with 3 tanks. It has an ax-15 and a 231J transfer case with a slip yoke eliminator kit. It has welded dana 60s front and rear with 538s, rear has a set of new 30 spline Yukon axles and I also have a spare...