9773762 1964 Pontiac Passenger Car
General Motors Casting Number 9773762 Clutch Housing
#9776382 (Cast #9776383 and #9773762 ?)
0.683 HOUSING ASM., Clutch
1964 P/8 S.T.
Most parts that I describe and picture, have identification on or with them, others I can identify from other sources and deduction (educated guess).
Factory correct applications are your responsibility. GM made part and part # changes with no rhyme but a reason (no production interruptions at any cost).
Applications are for replacement parts that were available at the time of parts book printing, and when possible model specific assembly manuals.
My observations come from the parts I have in my collection or other reliable sources your parts may differ.
If Factory correctness is your goal, do more research, join car clubs, forums and buy an assembly manual if one is available for your Project Car (you wont be sorry).
This is a fun and interesting part of the hobby!