I have determined that the front differential is shot. When there is no load on the gears under deceleration the gears are skipping. Bearing must be shot. The transmission shop said the inside of the case could and most likely is damaged. The differential gets hot to the touch after about fifteen minutes of driving. Right now this truck is on the back burner. Not sure if I am going to fix the differential or sell it as is.
I called a junk yard and they wanted $400 for a differential. I think they said it was command track or something like that. I am not sure if mine is.