I have a 1995 K1500 pickup which needs tires. The GVWR is 6100 lbs. I'm looking at the Starfire SF510 tires (Cooper). The options are 225/75R16 which has a 1984 lb load capacity and 44 PSI max. They also have an E-rated LT225/75R16 with 2680 lb capacity and 80 PSI max. $10 difference per tire. Is the lesser rated tire sufficient or should I go for the E rated? Tread life is not an issue because I put under 2k miles a year on it. Truck is going to be used for hauling firewood and possibly ~5k lb boat & trailer in the future. Tire specs here: http://www.atoztire.com/images/tireimages/SF510_specs.pdf Thanks.