Fits rear, inner (differential side) on the following Polaris ATVs: 2006-2007 Outlaw 500 IRS 2x4, 2007-2011 Outlaw 525 IRS 2x4 * Includes the cage, race, 6 balls, boot, clamps, grease, C-clip and retaining ring (everything you see pictured) * Made to meet or exceed OEM specifications * This rebuild kit is meant as an OE replacement and might not work with aftermarket parts or with lifted / modified vehicles.