I have almost completely given up on DIY projects that involve crawling under the car. I chalk it up to being trapped in a nearly six decade old body and no real good place to get it up in the air far enough to 'comfortably' get under it. When I purchased this car I bought a nice Mighty Vac pump to use for my oil changes just to keep from having to get under the car. Anyway, back on topic, I will likely wait until I take it in and get their read on the matter but if I get a chance before, I may drag out the ramps and try to see if I can tell where it is coming from.

Thanks for the responses here, it gives me some idea what to possibly expect - I'll report what I find...

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Dale