Moves the wheels out 1.5 . All kits are C & C machined and powder coated. Each kit contains 8 wheel spacers, enough to do either the front or rear. MUDWS1: Fits all metric ATV s with 10mm x 1.25 pitch wheel studs. MUDWS2: Fits all Polaris ATV s with 3/8- 24 wheel studs. MUDWS3: Fits all Polaris ATV rear wheels with 1/2- 20 wheel studs. MUDWS4: Fits Yamaha YFM660 Grizzly. Imported.