Need A833 advice

for the 10.5 clutch the longer fork is correct; but there are two types plus a bent one and two types of pivots, one of which is a ball
lol. Brewers shows them all, and details what fits what according to the bellhouse pns, of which there are two types just for SBMs with about 4 pns. So yeah, that's a lotta combinations.
Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists

Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists