One of the things I love about my 50yo Solex and points & condenser 1972 GT is the adventure of taking it on a long trip, and it returns on its own power. When I purchased it and got it running on the road a couple years ago, I only changed 1 thing. The starter. The original "I guess" starter would crank too slow to start it, when the engine was warm. After taking it apart, cleaning and lubricating it, and not finding anything inside that may cause a problem, I purchased and installed one of those permanent magnet starters from OGTS when I heard that it had faster, more starting power. I also did the separate relay thing, OMG!!! I think I just figured out what happened! Ok, the new starter worked flawless the approx. 10,000 miles I put on the car the last 2 years. Returning from a 400 mile round trip last weekend, I was running 70mph down the Interstate and all of a sudden, I hear this metal to metal grinding sound, and the amp gauge pegs to the plus side. It stays there maybe 20 seconds, then starts to settle back towards 0, but still shows charge. I finally was able to pull off and pop the hood. Definitely the sound was from the starter. I kept the engine running and drove it home. The only thing I can think of happened is that the external relay either malfunctioned, or the outside terminal connections on it touched and caused the starter to engage while I was driving. Amazing it didn't destroy all the electrical components and wiring in the car. I put another starter on today and everything seems to work fine. Is there anything anyone else can think of that may have happened? Lucky the flywheel teeth only had slight damage.