We bolted the block and tranny together and mocked them into the chassis to see what we have. As the photos show, we lucked out w/ the 2004R. All we had to do is move the frame brackets back a few inches (from the yellow pencil location) and narrow the stock '59 mount and it fits perfectly. The yoke has about half an inch play which is plenty since this half of the two- part drive shaft in these screwy GM X-frames doesn't move. We put the body on and we still have plenty of room to flatten the floor board so our Caddy power split bench/bucket seats can blot in.
We have most of the exhaust mocked in so now it's rebuild the tranny and engine, drop them permanently in the frame, bolt the body on, fit up the body panels and doors, do the final body work, etc., etc., etc. You know the drill.