1998+ Mercury Mariner 25HP Bigfoot Service Manual, Page 366Get this manual
LOWER UNIT
GEAR HOUSING (Propeller Shaft) (2.42:1 Gear Ratio)
REFREF NOQTYTORQUE DESCRIPTION (SHORT) (BLACK) (SHORT) (GRAY) (LONG) (BLACK) (LONG) (GRAY) (BASIC) (BLACK) (BASIC) (GRAY) lbinlbftNm