2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 258Get this manual
REAR DRIVING MECHANISM Apply molybdenum disulfide grease to the drive shaft splinesInsert the drive shaft into the swingarm and carefully align the splines with the universal joint to install itInstall the spring into the drive shaft and set the final drive assembly onto the swingarmthen secure it with