I have Nitto Dura Grappler tires here some info on it the E rated tires is what helps you maintain a stiffer side wall while towing and are 10 ply.
these tires are great I'll don't think I'll need a different tire as long as I have this truck. Hope this helps
(The Dura Grappler® is a highway terrain tire that provides a combination of tread life and ride comfort. The Dura Grappler® is suitable for a wide variety of light trucks, SUVs and CUVs. It is also available in popular 'E' load range, heavy-duty LT sizes for today's demanding diesel trucks. All P-Metric sizes in the Dura Grappler® line come with a 5-rib pattern. Whether you're working on a construction site or towing your toys, the Dura Grappler® was designed to meet your needs.)
(LT Tires with an "E" load range have a 10-ply rating.)