Thanks everyone. There is no interference from the old rear bushing as I removed everything from the TT. As its winter here in Pa its been cold in the garage so I have the okie in the freezer and the heat gun on the tube. Kevinski, thanks for the measurements. This will be a process of trial by thousandths..

"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."