Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 182Get this manual
GEAR HOUSING
Gear Housing (Prop Shaft)
Super Duty Gear Lubricant (92-1 3783A24) Anti-Corrosion Grease (92-78376A6)
2-4-C With Teflon (92-825407A12)