I have the same issue with my driver's side arm. I couldn't align the arm to the mount hole and basically what it felt like a cross threaded it when I tighten it down. Now 20,000 miles later I am beginning to hear a clunk, clunk, clunk every time I shut down or stop at a light. The sound is coming from that mount.

I am not looking forward to replacing this arm!

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1983 123.133 California
- GreaseCar Veg System