Fits rear, left & right on the following Yamaha UTVs: 2006-2009 Rhino 450 & 2004-2007 Rhino 660. The Monster Axles XP Series axle is designed to be stronger, longer lasting, and more dependable, no matter where you ride. Key to its performance, the plunge mechanism is moved from the inner joint to the shaft itself, eliminating issues that cause joints to bind and break. The CV joints are also designed to be serviceable in the field. Replaces OEM # (left axle) 5B4-F531H-00-00, 5UG-F531H-20-00, 5UG-F531H-21-00, (right axle) 5B4-F530U-00-00, 5UG-F530W-02-00, (bearings) 93306-206Y2-00, (seals) 93106-42800-00, 93106-38800-00. Set includes 2 axles, 4 bearings, 4 seals.