My thought would be that the WW-II Steel industry was over-taxed with demand DURING (1942) and after WW-II.
Then, in 1950, Korea and the need for more Iron and steel was needed for that war production.
But aluminum out of South America was readily available.
So perhaps some of that aluminum went into the fenders
as part of a alternate material that allowed them to sell vehicles.
Tom V.
I know of no aluminum mining in the USA.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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