Fits rear, left & right on the following Kawasaki models: 2000-2002 Mule 2510, 2004-2008 Mule 3000 2x4, 2001-2008 Mule 3010 4x4, 2009-2023 Mule 4000 2x4, 2009-2023 Mule 4010/4010 Trans 4x4 * Features stronger than OEM chromoly-forged steel axle bars * Fitted with neoprene CV boots for added wear and puncture resistance * inobard Splines - 15 (both), outboard Splines - 24 (both) * Replaces Kawasaki OEM # 39158-1105, 39158-1109, 39158-1104, 39158-1119, 39158-1120.