Trans and drive line in with all new parts. When the six nuts/bolts were tightened the rear g-bow formed into kind of a zig -zag shape, looking real wrong. Backed off the six bolts,rotated the drive line to see that the input shaft to the trans contacted the surface of the g-bow at 12 o'clock but had approx a 6mm gap at the bottom or 6 o'clock. Looks to me that the front of the trans needs to be shimmed up at the front to bring the two surfaces true to each other. Any thoughts?