im gonna be purchasing a t-18 out of a jeep pickup with dana 20 behind it...the jeep origanlly had a 360 in it what do i need to do as far as modifications to the tranny to get it to go in my cj with a 360....i was told the inpout shaft needed to be shortened??....if it came out of a jeep with a 360 going into a jeep with a 360 shouldnt it be the same....input greatly appreciated.....