Polaris Sportsman rear cv axles set 550 / 850 2009 only Please verify your year, make and model in the product details before purchasing. This axle has 28 teeth on the inboard spline. Please verify your axle has the same tooth count on the inboard spline OEM Replacement. Brand New Complete CV Axle Assembly 4340 Cr-Moly Steel Shaft Fully Assembled inboard / outboard cv joints with neoprene boots 1 Year Warranty (excludes lift kits & torn boots)