Tire rating on tow vehicle
I went from a f250 with an E rated tire to an f150 with a C rated tire. Should I have any worries pulling my fifth wheel, around 9000 pounds? (which also have E rated tires)
Forum Discussion
The truck will be fine with the LT C load range tires on a F150 that may have a 3800-4050 lb RAWR. You sure don't need a E tire in that case.
The problem we get into is E tires come on 3/4 ton HD trucks with 6000-6200 lb rear axles with wheels rated for that weight and 80 psi. Most 1/2 ton trucks wheels simply aren't rated for 80 psi.
It makes no sense to derate the E tire to a lower pressure to match the 1/2 ton wheels when the LT C tires will work fine.
I've had two different trucks with E tires. Didn't like the ride/handling especially carcass roll from using 50 psi (max wheel pressure) in them when carrying a load or towing a trailer.
Tires are happier at max pressures when carrying a load. You will use max pressures in your 50 psi C load range tires for many trouble free miles.
Now if your running a over load condition on the rear axle then its best to upgrade tires and wheels to the LT E.
The problem we get into is E tires come on 3/4 ton HD trucks with 6000-6200 lb rear axles with wheels rated for that weight and 80 psi. Most 1/2 ton trucks wheels simply aren't rated for 80 psi.
It makes no sense to derate the E tire to a lower pressure to match the 1/2 ton wheels when the LT C tires will work fine.
I've had two different trucks with E tires. Didn't like the ride/handling especially carcass roll from using 50 psi (max wheel pressure) in them when carrying a load or towing a trailer.
Tires are happier at max pressures when carrying a load. You will use max pressures in your 50 psi C load range tires for many trouble free miles.
Now if your running a over load condition on the rear axle then its best to upgrade tires and wheels to the LT E.
