727 trans problem

I would be leary of your tranny guy. A governor controls the shift point at wide open throttle (WOT) so I don't see what it has to do with putting your truck in reverse. I may be wrong, (it has happened before). I have not done many 727 transmissions (probably because the are so tough) but have done a ton of GM 350 & 400 transmissions, I am assuming the governor will act the same on a Mopar trans as it does a GM trans. I have not found a trans yet that the governor does not control WOT shift point.