OK, one more time:

I've had both the 4.7L and the 4.6L. THEY ARE TWO DIFFERENT ENGINES AND HAVE DIFFERENT TRANSMISSIONS. The 4.6/6 speed replaced the 4.7/5speed in 2009 (2010 model year) and was available until I believe the 2019 model year.

Towed with both, both will handle well over 3000lbs, but that much weight will wear out your truck brakes fast if you don't have trailer brakes.

IMO - the newer 4.6L with 6speed transmission is the better tow vehicle. The older 4.7/5 speed did have an overdrive lockout that helped, but it tended to "search" between gears more than I liked. The 6 speed has a Tow/Haul setting that actually changes shift points, holds it in lower gears longer before shifting to improve performance, and improves engine braking.

Last edited by MikeL2; 03/23/23.