Thanks Mike L - problem I have is the truck will not shift into high gear - and the dealer can't figure it out - says go to Allison (at 35 mph). I suspect Neutral Safety Backup Switch as they do get crudded up and I haven't put back my fenderwells since other work. I have a p/n 29541852 - 1 connector. Trying that tomorrow as it is a $50 part.
Would like to put an aluminum cover on but someone said might get hit by a rock - steel is better (????). I did lose my tranny cooler, had to suck it up and have dealer replace - looks like a mickey mouse unit.