OMC 985312 Cobra Ford 2.3L 4cyl 120hp Crankcase Crankshaft 1987-1990 Sterndrive Upper Unit 306107 is the part number

306107 is the part number on this

19T & 21T Teeth / 19:21 Ratio

2" Crankhole

so it has not been included

OMC 985312 Cobra Ford 2.3L 4cyl 120hp Crankcase Crankshaft 1987-1990 Sterndrive Upper Unit 306107 is the part numberItem Details OMC part number 985312 0985312 Crankshaft Also included is the lower cover 914500 Some of the 1987 & 1988 models used a different lower cover You can always remove this as the crankshaft was used with all years & models) This was from a running motor, and everything looks in good shape here, very nice crankshaft. Crankshaft Compatibility by year: (this is based on my research and the OMC parts diagrams) 1987: All Models Lower cover is