Pulling the trans on my 90 Dakota today. Looking for a 4 speed OD automatic trans that will bolt up to a 3.9 V6. Chicago area.

 

That would be a 42RH or A500 for a 2wd I am going to get mine rebuilt with all updates. It's about the same price sans delivery of a reman. Here are two sites I found this morning. Good luck
RH= RWD Hydraulic RE= RWD Electric.

http://www.transdepot.net/A50042RE44...ion_p_147.html
http://www.restorationperformance.co...%29-2WD/Detail