1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 147Get this manual
Quality of the image is intentionally reduced!
DRIVE SHAFT HOUSING and EXHAUST TUBE COMPONENTS REFNODESCRIPTION
0 -40 Ibsft(54 N.m) -50 lb ft (67.8 N.m)
-150 Ibs in (16.9 N.m)
CD -2-4-C Multi-Lube (2)Lactite Grade "