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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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | The Master Parts Catalog does not mention a felt base, but it mentions an earlier years' universal floor mat that had a felt base.
My guess is that there was originally no felt base and I think that Bill has hit the reason on the head - when it gets wet, it might promote rust.
I use a felt underpayment with the rubber floor mats on my trucks (for sound deadening and for heat insulation).
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