I’ve got an 02 1500 with the 4.7 engine in it. When going into a headwind the thing is a total dog. Is it alright to turn off overdrive when cruising at 65-70 mph down the highway into the wind? It is usually sitting around 2,800-3,000 rpm. Otherwise it’s just downshifting, speeding up, then going back into overdrive, then losing speed, and downshifting and going through that over and over and over.