Based on the lack of information available, I would think the manufacturers varied and most of the tools didn't have part numbers stamped on them. I did see a photo of the spark plug wrench that did have a stamped number, but I can't say whether that was a standard practice. Unfortunately, I'm not lucky enough to have any original tools. And even if I had the right tools, there would be little chance of proving they were originally tools that were with a Willys Jeep.
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