Fully assembled outboard and inboard joints installed on a 4340 chromoly steel axle bar.All internal precision ground components are assembled using high-temperature, high load-bearing moly grease.All axles are assembled using stainless steel low-profile clamps. All axles include a spindle nut and washer where applicable.Vendor Item # ATV-PO-8-319This item fits the following applications:Polaris 400 Sportsman HO (11-12)Polaris 450 Sportsman (Mfg. After 7/25/06) (2007)Polaris 500 Sportsman (11-12)Polaris 500 Sportsman HO (11-12)Polaris 500 Sportsman HO Touring (11-12)Polaris 500 Sportsman Tractor (2011)Polaris 500 Sportsman ET/EX Tractor (2012)