What I'm saying is that the '53 bellhousing wouldn't work with the later tranny. If you got a bellhousing with the '59 or '60 engine, then use that. Mounts and the clutch fork angle will be concerns still.
If the car has a '59 engine in it, but it still uses the enclosed driveline, then it would have to still be using the '53 stuff from the bellhousing back because when they switched to open driveline in '55, the tranny to bellhousing bolt pattern changed. It could also still be using the '53 flywheel,clutch,starter or they could have been upgraded to what they had in '59. Is the starter 6 or 12 volts? Since the two can't be mixed together because of a different number of teeth, knowing what it has for a starter would tell you if you have the '53 stuff in it or not.
