Re: 1969 C-20 with 3-53 diesel
I would bet its a SM465 just as in the gas trucks, those transmissions are very bullet proof for weight pulling.
Very interesting truck, nice to see it has landed in someone's hands that is helping it make history.
What kind of fuel mileage do you get and what was the total miles when you acquired it?
Keep the story going, this one is rare for sure.
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