I hit a rock and broke the gear case housing on my 1980 Johnson 100 hp Serial #J100TRLCSC. I disassembled it and cleaned inspected the gears and bearings right away. Everything seems to be OK. I'd like to buy a used housing, but don't know what other models, HPs, years, etc. will work with my gears. The sellers on a popular on-line auction site would have me believe they are all the same from 78-94. Hope someone can help.
Bill![]()