Ignition module failures
Thousands and thousands of original OEM Mopar modules ran long enough to make it to the junk yard. I've run a few that came from there, and still have some (somewhere) that are likely good
Are these failed modules FOR SURE OEM "old school" IE not "more modern" chinese/ etc replacements?
How are you running them, that is, proper ballast, or a high performance coil / ballast combo?