1968 Barracuda Notch - Plano, TX

Did some more measuring, the bellhousing face was out of parallel by quite a bit, 0.006" from left to right across the 4" sweep of the machined face around the transmission input bearing. At 16" across the mounting surface that adds up to a difference of 0.024". I experimented with shims on the left, and came up with a combination that gave me a runout of just over 0.001". I then remeasured TIR on the bearing bore. It was about 0.042" before and 0.006" after. Spec is 0.010". So one way to think about it, if I was looking down on the transmission the tailshaft would have been off to the left. Now, it is pretty straight.

Another issue I ran into, the factory dowels are 0.496", the Quicktime bellhousing is set up for 0.500". I had to drill out, tap, and use a slide hammer to pull one of them. I bought some 0.500" dowel tooling pins, sanded the OD of the end down a little and smacked them with a hammer and a drift a few times. The bellhousing fits over the dowels snugly now.

I installed the twin disc clutch assembly today. That went pretty easy. Next I will re-install the bellhousing to measure, set-up, and install the throw out bearing. Once that is done I will attach the transmission and roll it under the car.