MerCruiser Alpha One 1 Lower Unit Gear Set Forward Reverse Bearing Carrier 70-77 Waterski Tow Hooks & Pylons see pictures (side profiles) to

see pictures (side profiles) to get best idea of condition)

Stamped 42420

(Rochester Carburetors 2-Jet found on Inline-Cylinder models)

31093 Midsection Exhaust Housing Extension Tube (Short Shaft)

MerCruiser 4bbl Carburetor Flame Arrestor Stamped 85785

MerCruiser Alpha One 1 Lower Unit Gear Set Forward Reverse Bearing Carrier 70-77 Waterski Tow Hooks & Pylons see pictures (side profiles) toItem Details MerCruiser Sterndrive Alpha One Lower Unit Complete Gearset That was generally found in 1970 1977 models (Pinion, Forward, Reverse) & Bearing Carrier Used in MerCruiser MC 1, #1, "R Drive" lower units 1970 1977 but also could be used as a complete set in 1978 1982 units if you use all of the gears here. (If your driveshaft HAS A PRELOAD PIN then these are the correct parts, if your's does NOT have a preload pin, then these are NOT the