Have a late 1970's lightweight with 225-75-16 tires mounted on 5.00 x 16 original wheels. I run the vehicle on the beach, so would like to run slightly larger tires, understand that I can mount 235-85-16 on the original wheels. Are there any larger steel wheels , that will fit a lightweight, so that I could possibly run maybe, 245 or 255-75-16 tires.