Holeshot wroteWhat 5-speed might that be??
The T-5 is not up to the amount of power that can be made by a good running AMC V8. The Rebel Machine had a 390 with a cast-iron version of the R4B and was rated at 430 ft/lbs. of torque. A modded 390/401 can go to 500/500 quite easily. Add traction to that equation and you have a problem.
Richmond no longer sells 5 or 6 speeds for AMC. If you find me one, I have a $100 bill for your effort.
The AMC20 will make a long streak of 90wt for the tow truck to follow.
An early (6572, 65 style being a little narrower at the flanges) Mustang nine-inch is practically a drop-in, very little changes. Bigger U bolts, shock mounts to fit the bigger U bolts, & an adapter U joint. Piece-O-cake.
If you are wanting to sell the locker & gear, it may be the rare Group19 goodies and worth a fair chunk of change, enough to cover the upgrade to the Ford 9" with whatever gears you want, traction bars, plus a posi for it.
Boy, I shore hope the T-5 I'm putting in my Rebel holds up at least for awhile.
BTW, won't a Chevy manual trans work? I know it will bolt to the bell housing, and the input shaft is 1-1/8" 10 spline, but I don't know about the pilot lenght.