What To Do With a Tweaked Flex Plate?

I agree. If its questionable, replace it. What year is the OPs engine and trans combo? If late 60s early 70s, then any A904 flex plate will fit up thru at least 1989. Even if he's in mexico, theres still got to be enough MoPars down there in a junkyard that would have one. It's an extremely common part. It's not like he lives behind the iron curtain or in Antarctica lol.