Well,
Chrysler Corp automatics through 1962 have kind of the same issue; if the centerline through the shaft crankshaft & input shaft of the engine and tranny aren't in perfect alignment, it could cause a variety of issues, from vibration to trashing of seals, pumps, torque convertors...
This is one of the reasons auto/truck makers went to a flex-plate to couple the torque-converter to the crankshaft...
A few thousandths of a inch "misalignment" between the engine and bel-housing/tranny could mean big problems...
I have been reading my '54 SHop Manual, and it give a detailed proceedure for checking the centering/alignment/ run-out between the bell housing and crankshaft for the Hydramatic, and also for the regular bell-housing for manual tranny trucks... plus a proceedure to correct unsuitable alignment...
I didn't know though if there were different dowel-pins ( size, number, location) to locate that Hydro adapter...
We're supposed to bring the chassis home tomorrow ( in the torrential remnants of Ernesto)...
Thanks...
