Thanks guys, here's a picture of the tooling.
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The hat section slides on the shoulder bolt and the whole thing goes into a press to create the ridge.
The holes and blanks were cut with a CNC plasma cutter. The rolled plug flange is a fake and was welded and brazed together. Tricky, but good enough to fool just about anybody.
John, I thought of your project when working on my car today. After rotating my car upside down I took this picture for you. I hope it helps, but it sounds like you and Phil already figured it out.
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Thanks,
Tom
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The hat section slides on the shoulder bolt and the whole thing goes into a press to create the ridge.
The holes and blanks were cut with a CNC plasma cutter. The rolled plug flange is a fake and was welded and brazed together. Tricky, but good enough to fool just about anybody.
John, I thought of your project when working on my car today. After rotating my car upside down I took this picture for you. I hope it helps, but it sounds like you and Phil already figured it out.

Thanks,
Tom
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