8 3/4 rear
thats the biggest problem finding gears or just about anything that will fit a 741. The 742 or 489 has just about everything. Walked into the mother load of E body 8 3/4 at ultimate rides. Its a company that specializes in building high dollar E bodies he had about 15 or 20 complete rears sitting around. Loads of stuff for E bodies an not a thing for a bodies.