Your 54 truck engine will still have a flywheel for a 6 volt starter. It should have 139 teeth on the ring gear. It will work just fine with the starter you're using currently. If you attempt to pair it up with a 12 volt starter, it WILL NOT work unless you also use a flywheel from an engine with a 12 volt system. That's 1955-up on the cars, or a 55 2nd. series or later truck flywheel. The 12 volt flywheel has 168 teeth, and the teeth are the wrong pitch and depth to work with a 6V starter. Running 12 volts against a 6V starter is no problem, but if you have a key start system it's better to run a 12V solenoid on the 6V starter.
Jerry

Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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