Also, one thing to mention. Spacers on a solid axle like a tractor does not adversely affect suspension geometry as they don't have suspension. The Toolcat has independent suspension with A-arms so moving the tires more outboard would change the leverage applied to the A-arms. Being that the Toolcat can lift 3000 lbs and do that while traveling over rough terrain, I would really be careful with spacers. You would be adding more force onto the A-arms, ball joints, tie rods, and stop pads that carry that load. Just my $.02