1970 - 1976 Mopar Combination Brake Valve Seal Kit | Muscle Car Research LLC
I been saving them for years This site has instructions on rebuilding them. Click the links on the site. I order kits from them they come with the soft copper washer.
There are two different style which are interchangable. Weatherhead and Kelsey hayes. You can see the physical difference in the pics I posted if your eyes are old like mine and cannot see the small logos.
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