Probably an obvious question, but if I wanted to use the tranny to slow speed on hilly terrain to save the brakes from overheating,I'de be best in tow/haul? With 4000#s in the bed, its a truck camper, would I be damaging the tranny, or causing premature wear? Maybe better to be in manual mode and pick a low gear?
I dont have experiance as I usually dont drive where hills are a factor but Im planning a trip out west where steep grades will be a factor for long periods of time.