I'm thinking about changing the wheels on my 9200 lb travel trailer from 15 inch six lug rims over to 16 inch six lug rims to give me a greater assortment of tires with higher load carrying capacity. My existing 225/75/15 load range D trailer tires are only rated for 10,000 lbs. My question is: Are the 16 inch six lug rims (either steel or alloy) that are on the Silverado 1500's rated for a load range E (80 psi) tire?