I Want to put a shift kit in my 4R100 I do pull Trailers but there are so many out there?? sonnax valve the suncoast tugger kit and BTS valve body i hear good and bad about all. I need some input on this Please
Trans Go Tugger kit. If you don't mind playing with the VB. The kit is easy to instal and corrects alot of issues with the tranny. You will have to remove the tranny for the complete kit. This part is optional.