2006 Arctic Cat DVX 400 Service Manual, Page 46Get this manual
2Remove the reverse idler gear and shaft; then remove the countershaft assembly (1) and driveshaft assembly (2)SP189
2Install Crankcase SeparatorCrankshaft Remover (pn 0444-009) on the right-side crankcase aligning the puller screw with the crankshaft; then separate the crankcase