NHDiesel

The RH transmissions are the easiest to swap into a vehicle. All they had for electronics are the TC lockup and overdrive, both of which can be controlled by switches. The RE transmissions are shifted electronically for each gear. You can run them without a computer, but it takes more wiring. Its possible to wire up a keypad that lets you shift the transmission by pushbutton, but it won't shift automatically without the computer wired up.

I haven't been inside the truck REs, but I have dealt with other Chrysler electronic transmissions used in Jeeps, and wiring up the manual keypad for off roading is somewhat common.

Jim

clarkoh

Hmmm! Maybe a set of paddles (formula 1 style) behind the steering wheel for up and down shifting. I wonder where I could get the schematics for the RE shifting wiring?? Is there a source for the offroad shifter keypad/ controller device?

NHDiesel

I never kept track of the info myself, so I'm waiting to hear back from a few more people, but here is a little info. Its for the AW-4 electronic transmission used in Jeep Cherokees, but the principles are the same for Chrysler transmissions. A difference with the Chrysler transmissions is that they use a seperate OD unit mounted at the rear of the transmission, which isn't controlled by the other solenoids. I'm posting this for now because it at least gives you an idea how they work and shift.

http://www.awshifting.com/1-0.htm
http://go.jeep-xj.info/HowtoAutoSwitch.htm

Jim