Upgrading 1965 Barracuda brake lights
65Valiant:
I would be interested in the exact type of LED replacement you used. I have never found one even close to the output 1157 in the daytime - or I sure would not have put this much work in to it.
If you mean the gaskets for the lenses themselves, you can buy them from
http://www.detroitmuscletechnologies.com/
I simply cut my own from EVA foam sheet:
If you are looking for the molded trim that goes around the outer edge of the housing between the housing & body - they are very hard to find. They were injection molded, and can't be cut from flat sheet.
B.