67RS do you have any pics of the under side of your car before and after you removed the undercoating?
I have a 69 Camaro that was taken to Ziebart the day after it was sold, and given the works.... So it just has loads of that undercoating all over.
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Here are pictures. The first one is the car on its side in my garage, yes on a mattress. The second one is the undercoat partially removed, but you can see where it was. The rest are after undercoat was removed. I'm sure I have more pictures, but have just been too busy to look. Let me know what you think.