2008 Arctic Cat ThunderCat ATV Service Manual, Page 66Get this manual
6Remove two cap screws securing the oil pump in the crankcase and remove the oil pump
NOTE: Do not disassemble the countershaft assembly unless necessaryIf necessary, see Servicing Center Crankcase Components sub-section
Servicing Center Crankcase Components
NOTE: Whenever part is worn excessively, cracked, damaged in any way, or out of tolerance, replacement is necessaryGZ305
7Remove the driveshaft (G); then remove the countershaft assembly (with shift forks) (H)Account for three flat washers on the countershaft