2004 Arctic Cat ATVs factory service and repair manual, Page 94Get this manual

3Remove the 5th drive washer and 5th drive circlip from the countershaft I NOTE: The driveshaft is now completely assembled
the countershaft using bearing seperator and hydraulic press 5Remove the circlip securing the 4th drive gear on the countershaft;
then remove the washer and 4th drive gear Pressing the 2nd drive gear off may be done twice before shaft replacement is necessary