98 vulcan w/ AX4N after swap questions
Hi, looking for help on a transmission swap. 98 w/ vulcan and AX4s, 160K mi. A friend offered to swap in an AX4N and was convinced it would work. Runs fine except occasionally throws P1744 TCC slip error and pops to neutral at slow speeds. After much reading it appears that the gear ratios are different giving it the impression it is slipping when it is not. The TCC was swapped to make sure, plus any other sensor he could get his hands on.
Before I give up on this car I'd like to try an ECU from a heavy duty taurus. Supposedly there were a few made with this combination. Can anyone help me find a part number of the ECU?
Any other suggestions would be greatly appreciated.
Thanks for any leads. John