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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jun 2009 Posts: 1,596 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 1,596 | As a metallurgist and a car guy, you asked a really tough question to explain.
It's always a good idea to touch it with a magnet, that can rule out aluminum and many stainless steels if it isn't magnetic.
As was already mentioned, you can tell the difference in the way the parts are formed. A stamped part on these trucks will most likely (although not always) be stainless.
As far as pitting, Aluminum is very resistant to corrosion damage, so if the part has corrosion or pitting it's more likely it's stainless steel or pot metal. | | |
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