2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 97Get this manual
1Install the 4th drive washer onto the countershaft2Install the 4th drive gear making sure the bushing is in front of the gear; then install the 4th drive washer onto the countershaftSecure with the cirdip NOTE: Account for the bushing in front of the gear
6Remove the countershaftAssembling
3Install the 3rd drive gear; then install the 5th drive cirdip onto the countershaft
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2nd Drive Gear 3rd Drive Gear 4th Drive Gear 5th Drive Gear 5th Drive Washer 5th Drive Circlip Shaft Bearing 4th Drive Washer 4th Drive Circlip 4th Drive Washer