Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 458Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 458

BIGFOOT GEAR HOUSING
12Install thrust bearingCoat thrust bearing with Super Duty Gear Lubricant

Super Duty Gear Lubricant (92-850737 1)

Thrust Bearing

13Apply Super Duty Gear Lubricant to bearing surface of reverse gear and install reverse gear