Boss Bearing H-ATV-RRB-TRX250-2E5B-1 Rear Wheel Bearings and Seals Kit TRX250EX Sportrax Complete Axle Rebuild 2001-2008 Kit Contains: 3 Bearings; 3 Seals; 1 O-ring This kit is all you need to do a COMPLETE REAR AXLE REBUILD! Kit does not include the bearings in the final drive.