When I swapped the tires on my old John Deere 8Y yard cart, I ran into a classic problem—new wheels, same axle, and suddenly way too much side-to-side play. The thinner tires didn’t fit flush, and I was left with a wobbly mess that made hauling feel sketchy. Rather than stacking washers or rigging something janky, I modeled a simple spacer set to lock everything in place. This file includes three sizes—1", 1.5", and 2"—all designed for a 5/8" (0.625") axle.