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I have a April 69 pump on my car with the GF stamped on.Did they start with the sticker type in May???
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Mark,
I'm positive you'll get a lot of differing opinions on this subject. While I couldn't say for sure, the pump in the setup
is dated May 1 so it is very possible. It is also possible the diverter valve was replaced at some point early in the host car's life.