Munkeebutt

"Tires come in P(passenger car) sizes and LT(light truck) sizes. A lot of 1/2 ton trucks come with P tires. They ride better and are typically less expensive. LT tires have more layers and are a lot stiffer. They are made to be safely loaded to capacity for the life of the tire. P tires really should be loaded to the maximum capacity every once in a while. LT tires are typically available in three load ranges: C, D, and E. An E rated tire at full inflation carries more weight than a C or D rated tire at full inflation. The maximum inflation for E rated tires is also higher than D and C, and the same is true of D rated tires in comparison to C. Some people that drive off road like to buy LT tires for better puncture resistance even if they never use the weight capacity."

What ^ he said. Unfortunately, most aftermarket A/T tires only come in E rated in most sizes for 18in and 20in rims. In my opinion and for my usage, C rated are perfect. I wish tire manufacturers would provide more sizes in C's.