did you return to the re builder??? it should have warranty.
I live outside Phila. If you dont get any results, you can go to a place that has done all my units in Phila. It is called Xpert Transmissions and the guys name is Mark and is a first class place.
Roy
RepairPal Certified shops can diagnose and repair your 1996 GMC G3500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
can u send me the phone number please,,,