Might need a spacer to keep them off the frame, but cheap and easy & only if needed. Had truck tires on mine. Didn't like the bouncy sidewalls, a stiff skidsteer type much better control. I stuck with the 7" and that kept it from getting stuck, in mud. Worked well in snow too. The wider floatation tires will spin on top of mud, makes it hard to get around, but they look cool. Since they're more for work than show I like skinny for everything, mud, snow, digging minus driving across a finished yard, then wider wins.
Later I found a good deal on skinny 15" skid tires. About 80-90ea. Instead of interlocking tractor tread pattern like normal its more of a mono V tread. I'd bet they work great.
