Just picked up a 93 bronco at Mecum with 43,000 on it. The seller seemed to forget to mention In their write up the tranny was hosed . Car is low mileage and I’m keeping it but as I do my homework I understand the E4OD’s were a bit problematic. Has a potential upgrade or different tranny been used / found to replace the E4OD or should I just rebuild it ? Truck has a 351 in it .