I put a nv4500 (5 speed) and 6.0 from a silverado in my jeep, its running with a hacked together 6.0/4l80 and 4.8/5spd tune. it all works but i am getting some stalling when shifting/stopping. i have been comparing some manual/auto tunes and have an idea on what to change but starting with the correct tune for the drive train will be 1000% easier..