I am getting ready to buy tires for my truck. I am running hummer rims with dually dana 60 hubs in the front, and a dually 14 bolt adapter in the back to make up for the 7.25" of backspacing these beadlock/runflat wheels have. I was just going to run Hummer Goodyear 37" tires, but my project truck has now truned to a pretty much off road only vehicle. I want something more aggresive. Mud, loose dirt, and sand are my biggest obstacles. How much wider than a stock tire can I run on the 8.75" hummer rim width safely? Any advise on tires? Was thinking about 38 x 16.5 Swamper SR's.