Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 425Get this manual

BIGFOOT GEAR HOUSING
7Bearing Preload Tool (91-14311A2)

8Mandrel (91-15755)"

9Backlash Indicator Tool (91-196601) 2.07:1 Gear Ratio (1 429)

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives