If you still have the 17s that are shorter just for the trip. The SLT or Tradesman honeycomb style grill is a direct swap and can be picked up on mopar discount sites. GDE did proper testing and showed measurable temps improvements when towing the Dam in is it Arizona. But mostly tow haul and let it drop gears and speed as it needs to. Just adjust the throttle to keep it at or slightly below 3k as to avoid derate. This will give you the best average speed not be as hard on your truck and keep you from being a 15 mph rolling road block on the climb. You will likely be going 45 mph but it beats 15 mph because of trying to hold 60 or whatever. Good luck enjoy and let us know your experience.