On your deal a used pickup core Dana 60 would be my choice to use based on me breaking many 8 3/4 rear ends bracket racing
I bent a 8 3/4 housing bad enough in my old pump gas street race Duster to make it break the welded on ladder bar rear end brackets off of the housing
Luckily it happened on the starting line and not going around a corner on the street
That car pushed a bunch easier after swapping to the cut down Dana 60 pick up housing, a bunch easier
No noise and maybe twenty Lb. heavier with the thicker pickup axle tubes with the 35 spline race axles
I'm a dedicated Mopar racer, Dana 60 came stock in the hi po muscle cars with stick tranny after 1965 for a reason