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
Forget the tires and go by the GVWR. If the trailer tongue weight PLUS everything else being carried by the tires is under your trucks axle rating it should be safe because tires are required by LAW to be capable of handling the maximum weight the truck is rated for. Now that being said, stronger E rated tires will be more stable than the 6 ply tires (C rated) but are not totally necessary if the total weight is less than GVWR and/or axle rating. I'm actually surprised though that a 5th wheel would not overload a light duty F 150 and if it were a heavy duty model it would already have E rated (10 ply) tires. 9,000 lb. 5th wheel more than likely has over 2,000 lb. of pin weight and unless your truck is a heavy duty model it won't carry that much payload.
