Cooper Discoverer HTP 265 75 16

Put the same tires on my 2000 Ford F250 7.3 Had the SAME issues. I was amazed, thinking there must be something wrong with the tires. I reviewed some posts here with advice given to let the tires break in for a couple thousand miles. Sure enough, settled in and the issue was gone. HOWEVER, I am having a very different more serious issue with these tires. They CAN NOT be overinflated. I wore out the centers on the rear tires, with a PSI of 65 LBS unloaded. Towed about 1000 miles fully loaded at 80 lbs during that time. This happened in the first 10k miles. Argued with the dealer for a long time before they replaced them.

I'm convinced these tires can not run at full pressure