2001 Mercury Mariner 50-60HP Factory Service Manual, Page 411Get this manual
NON-BIGFOOT GEAR HOUSING
GEAR HOUSING (DRIVE SHAFT)(1.83:1 GEAR RATIO)
34 30 28 22 21 20 19 34
3.44 IN87.37MM TORPEDO DIA
Loctite 271 (92-809820) Loctite 405 (Obtain Locally) 2-4-C With Teflon (92-825407A12)