This shows the 6-volt unit with the gear in place. The new generator didn't hold onto the gear in the same manner. Would it work?

With a punch we drove the pin through the gear and the generator shaft.

We had to scavange the gear off the 6-Volt unit and work it onto the new generator. It was pressed and pined to the 6-volt unit and bolted onto the 12-volt puppy. The 12-Volt didn't come with bolts, gear fasteners or even a gasket. There weren't ever wire stud nuts. We made up a puller to remove the gear from the old generator using some JIMS mainshaft bearing race puller tools.

Since we were making another tool do the job we had to find a bolt that would extend our pulling function. It worked and the gear was removed.

Generally, if you replace a 6-volt with 12-volt the bolt holes need to be drilled to 5/16 from 1/4 inch diameter holes. Plus the bolts need to be replaced. Early models had generator straps that supported the smaller bolts. They're no longer necessary with the larger bolts holding the heavy generator in place.

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