2001 Mercury Mariner 50-60HP Factory Service Manual, Page 464Get this manual

BIGFOOT GEAR HOUSING
GEAR HOUSING (PROP SHAFT)(2.31:1 GEAR RATIO)

4.25 IN107.95MM TORPEDO DIABIGFOOT

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