Tailshaft bushing removal/install

While chasing a high speed driveline vibration(dead smooth below 98 mph with dramatically increasing resonance above that), I bought the tool to change the bushing in the car without disassembling the transmission. It works like a charm.

However, even with a brand new installed bushing and yoke, the clearance between the two parts is excessive on my stuff. A buddy of mine is making oversized bushings to reduce that clearance, but having the yolk plated and ground to a larger outside diameter is another option.

I've yet to do either so far, as I can't figure out how to measure the inside diameter of the installed bushing with the output shaft in the way.

jbc426- I replaced my tailshaft bushing recently. the new one I bought felt like it had the same amount of slight play as the used one I had in the car. I am not a mechanic but perhaps the slight play is necessary to avoid seizing as the slip yoke heats and expands...? Maybe a tighter clearance can be run with reduced service life and the factory specs are designed for reliability at standard highway speeds and below...? Curious if anyone out there has customized these parts for tighter clearances- what their using the car for, how they achieved the tighter tolerances and what their longevity experience has been.

66fs- What are you using for a tailshaft bushing and slip yoke in a car that runs 100 mph all day? Is it the stock spec sizes?