[Campermike]

I would actually look at your truck door and see what your axle rating is and the recommended pressure. Since those were oem on your truck they will exceed the able rating at the recommended pressure. As long as you aren't exceeding that I would run then at or slightly above recommended pressure. If you set them to max you will likely have heavy wear on the center of the rear tires. The manufacturer set the specs to a safe psi for the axle rating. By the way I recently bought this same tires for my ram and they are absolutely better than the wrangler sra they replaced.