Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 194Get this manual
GEAR HOUSING
Gear Housing (Prop Shaft)
63 64 48 50 49 46 47
Super Duty Gear Lubricant (92-13783A24) Anti-Corrosion Grease (92-78376A6) 2-4-C With Teflon (92-825407A12)