I believe you will have to have a new tailshaft put in and a tail shaft housing..And about the shifter Hurst makes a shifter for them, and Summit Racing sells them.......If you want to sell the tranny/transfercase I might be interested..
O 1 more thing if it came out of a 1/2ton truck it should be a NV3500, and some 3/4,1 tone trucks had the NV4500 which would be cast iron...

Good luck
Harmon