The tow haul in the Ford downshifts the transmission automatically when going down steep grades. You turn it on, tap the brakes and the transmission downshifts one gear. Tap the brakes again and it will shift down another gear or if the rpms get too high it will downshift itself. Even when not towing it is an extremely useful tool. I use it all the time .... when I am not in Florida.
__________________
|