LT usually CAN run higher pressures, and that is what gives the load capacity. Typically it is actually determined by the load range, as you can have LT tires in a lower load rating that have a 50 psi max pressure etc. Load range E generally bumps the pressure to 80 psi max. Some have a minimum pressure, but often you can run them at typical car pressures. I have Load E tires on my old Yukon that I typically run at 45 psi (factory recommended is 36, I think). When towing or loading it heavy, sometimes I'd air them up to 65 for a little better handling, but since I was nowhere near the rated load in a half ton SUV, I never had to go to 80 psi. My RV with 19.5's on the other hand is 100 psi max, 85 psi min. Anything less than that leads to belt separation and failure, even at lower loads.
Max pressure gives you max load with "ideal" max load deformation. If you are running half load, you can run half the pressure and have the same deformation, which is what causes heat and eventual failure. For similar size tires, I'd use the same pressure for an overclassed tire as I would the proper class, maybe with a little fudge thrown on top for safety margin. Hence running 45 when factory calls for ~35 and tire is capable of 80.
I haven't had any experience with Coker tires, but I haven't heard anything bad about them. I doubt they are the best performance tire, but that's not what they are trying to be. They repop classic tires to give the right look and feel, so I doubt I'd hesitate to use them on one of mine if needed.
Last edited by Hunter79764; 08/22/22 05:00 PM.