Changing a 4x4 RE to run in a non computer 4x2 and then having to buy the computer to control it would be a major expensive pain in the ***.
IMO a 42 or 46 RH with hydraulic shift controls would be WAY simpler and WAY cheaper.
Been running a Transgo stage 2 kitted 42RH in my Dart behind a mild built 5.9 for 5-6 years without a single glitch.
I designed and built the speed adjustable automatic shifting OD and converter lockup sytem.
The entire trans, converter, 7290 yoke, shift kit, OD and lockup kit accessories ended up around $500
