Lost reverse
 

Hello got a question, my 99 Durango, 5.9L 4x4 SLT lost reverse, I found a 2 wheel drive transmission out of 2001 Dakota 5.9 L R\T. , 1) Are they the same transmission , wiring and mounts, and then 2) can it be done with changing the tale end to accommodate the transfer case?
thank you for your time