Thanks for all the input!! Having had the time to study things, Im going to go back to the standard, full size Ram with the 1 1/4 or 1/1/2 inch ball. The heavy duty unit is just HUGE. I bet this thing weighs 5-6 pounds alone! If you were mounting the 110-113 units, then this is what you want, but Im going to back down one size. Thanks to all, Mike Whitten