1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 285Get this manual
REAR DRIVING MECHANISM Common Driver, 22 mm 1.0Driver Attachment, 62 68 mm Attachment, 52 55 mm
07746-0020100 07749-0010000 07746-0010500 077460010400
TROUBLESHOOTI NG
REAR FINAL DRIVE
Excessive noise Worn or scored ring gear shaft and driven flange Scored driven flange and wheel hub Worn or scored drive pinion and splines Worn pinion and ring gears Excessive backlash between pinion and ring gear Oil level too .low