my 2005 5.9 48re , I was towing when suddenly started notching that when going up over pass tach would increase about 200 extra rpm . then it seemed to shift strange , made it home. changed pressure sensor ,transducer , seemed to shift fine but no O/D . took to a friend that hooked up to computer while drivng and said all pressure were good and calling for O/D but not going in , changed O/D and tcc solenoid but still no O/D . shifts fine otherwise. ??? read about checking number 6 and 7 pin in top of transmission for ground but how do you know which is 6&7