Hello, all! New poster here. Getting pretty muddy in NC Mo. I have a '94 9500 RWA with 30.5-32 and 18.4-26 tires. When I get 3/4 loaded the rear tires want to sink in. Can I put 23.1 or 28L tires on the rear? The wheels are 8 bolt. Will the front wheeels from a 4400 or 6600 work? Will the rear end be too high to clean properly?