Hello all. Glad to meet you all

Was wondering if anyone has any idea of why my 96 Grand Cherokee has lost 1 and OD if in drive but has first if you go from park to first and manually shift but still no OD. I have replaced the TPS as one of the culprits and taped up the bare wires at the connector for the lock up and OD and tested the voltage on the center wire, all good there. Any suggestions would be greatly appreciated before i pull the transmission for a rebuild and hope that fixes it.