This rear axle allows you to convert to a 2-wheel setup. Machined from 6061 solid billet aluminum, it is not hollow like the stock axle. Also, the center spacer is machined as part of the axle, giving it added strength and eliminating any possibility of bending. This axle accepts the stock 8' factory Arctic Cat wheels and adjuster bushings. Just remove the stock axle, spacers and wheels. Installs easily with 2 stock wheels, adjuster bushings, the 2 larger supplied washers and your axle bolts. Provides better sidehilling capability, lighter weight, along with a 'MOD' look. Fits all M Series, King Cats, and 1M Mountain Cats with the 8' rear wheels.