I pull an inclosed tandom axle trailer daily 6'6" high 16' long; weight about 3500lbs with tools and as much as 11,000lbs with ceramic tile loaded on the trailer. i have been running 70lbs on the back tires and 55lbs on the front tires of the truck. The tires appear to be round and not sitting flat on the pavement. I am wworried about uneven wear. any suggestions on pressure. BTW the LBZ pulls so good i forget that load is back there from time to time.