21 3.5L XLT 4x4 CC 5.5box 3.55 with Max Tow, leveled on 295/60-20's Nitto RG with 1" rear block.
I filled up my rear tires to 48psi and fronts to 38psi (E load)
I used a 22ft Speed loader trailer (2700lbs) towing a lifted 1st gen Tundra 4x4 roughly 500 miles.
The F150 towed it easily with a ton...
The Truck rides like a boat (floaty at higher speeds) and a bit too soft. Of course my 295/60-20 Ridge Grapplers have some to do with this but... I had Bilstein's in the rear on my 2018 and it handled much better. Don't get me wrong the 21 feels more like a Cadillac and bed bounce isn't like the...