As an update, I went out and installed one on my truck today. Since I don’t have an original, in original condition, I was never sure but after installing mine, I think it’s evident there’s a lip on the outer edge that my gaskets don’t have. It did look like it would still seal though. But obviously I can’t guarantee that. I’ll bet it’s still better than some. So the offers still there if anyone wants to try one. Again, not looking to sell them.
First picture below shows lip on outer edge of an original, while second picture is my gasket with lens.
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