I tried step 3... couldn't get much off with a 4" disc without removing the bearing retainer so I probably did not get enough to make much of a difference.

Step 2 just scares me a little... I have already cut the bearing retainer and main shaft to the same dimensions as the original transmission and adding some washers as spacers as a permanent fix is just not right. I could see a plate but that would require some time on the plasma table at work.

I am on to step 1 now... gonna try a late 80s Camaro disc and an early 70s Vega disc to see if the shorter hub will help. This seems like the best route. Gonna take the original 10 spline down to compare hub length.