Well I'm pretty sure I found what was causing the pop/knock in the rear when I would go from foward to reverse. Looks like I busted the shim in the rear pack allowing the springs to roll on the perches. So I'm going to build a set of perches like those we did for James and correct the pinion angle without the shims. Musta done it at Uwharrie on the first rock of Kodak. Heres a few pics of some other things just because I had the camera out.