This company makes a 6 volt alternator. It looks like they convert a 10SI to 6 volt.

https://brillman.com/product/6-volt-1-wire-alternator-40-amp-negative-ground/

My guess is that the original GM part number may still be there which would be confusing.

Last edited by Gord&Fran; 08/19/2019 3:26 AM.

Gord 🇨🇦
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1954 1/2 ton 235 4 speed