Quote:
Originally Posted by INFmstrTech
Just swap the bell housings. The trans itself is still a RE7R01A-there are differences in gear ratio’s-see attached. Only reason that you would have to swap valve body’s that have the TCM integrated would be due the logic for ECM mapping or for some reason the VR 7speed TCM software has some discord with the 3.7 ECM-though that shouldn’t be the case since the 3.7 has the same internals as a VR 7 speed. Looking at the wiring diagrams for both-only difference is the 3.7 uses pin 4 for ‘k’ line to the DLC. See attached pics. Also side note... a long time ago when the 3.0 first came out I wanted to see if a 6speed mated up with a clutch installed, and it sure did just crank position sensor holes were off.
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Can’t just swap bellhousing, the transmission code is the same but got different internals, the reason you can’t just swap the bellhousing is because the vr30 torque converter is bigger than Vhr and it won’t fit in the VHR transmission housing, now you thinking maybe try the vhr torque converter and bellhousing and I say no it won’t work since the output shaft is longer and vhr torque converter won’t work.