2005+ Mercury Verado 4 Stroke 200/225/250/275 6 gear housing Service Manual, Page 119Get this manual
Left Hand Rotation If the driveshaft is broken, place Propeller Shaft Nut Adapter onto the propeller shaft splines, hold shift shaft in forward gear and loosen the pinion nut by rotating prop shaft counterclockwise to turn gears, thus loosening the pinion nut
aShift Shaft Tool (fabricate from old shift shaft)Pinion Nut Wrench
Pinion Nut Wrench Propeller Shaft Adapter