2005+ Mercury Verado 4 Stroke 200/225/250/275 6 gear housing Service Manual, Page 146Get this manual
Left Hand Rotation 8Rotate the driveshaft at least full turns in clockwise directionRecheck the pinion gear heightIf pinion height is not within specification, adjust shim thickness and recheckRepeat this process until the average pinion height is within specification Checking and Adjusting using Pinion Gear Locating Tool 91-12349A05
aRetaining ringSplit collar
cGaging blockLocating disc
NOTE: The reverse gear assembly must be installed when using Pinion Height Tool (91-12349A05)1Using Disc #2 and Flat #4, install Pinion Gear Locating Tool into gearcase
aFeeler gaugePinion Gear Locating ToolDisc #2