Originally Posted by Jim34RL
LT (light truck tires) are the only tire that should be on a pick-up truck for towing. The only reason P-metric tires are used on a light trucks such as a 1500 series trucks is that most people do not tow and want a car ride for their grocery getter.
The tire should be an "E" rated tire and the wheel should be able to support this load also. Some wheels sold for BLING and Flash will not support the given load placed on the tire when towing.
x1000 - The best advise for your and others safety.
Are you sure a 1500 (1/2 ton) series is enough truck for your anticipated trailer? I think I would more consider a 2500 (3/4 ton) series with a 3.73 ratio(s) What will be to combined gross weight? Some RV dealers will tell you "Ya, you can pull it with that" as you beat the daylights out of your under-powered, under-equipped truck. You are spending money. Spend a little more and have your truck last that much more longer (if required)