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So I am adding a clock to my dash in place of the Blank (75 Monza TC), I ended up with a real nice one to put in, but it is missing the adjustment knob. Does anyone know what the knob actually looks like? I found different ones that may fit it, one is a two piece item https://www.ebay.com/itm/1968-1982-C3-C ... 2913695971 , then I found a one piece https://www.ebay.com/itm/Chevy-Pontiac- ... 2912218727 . Got any ideas?
Thanks, Jeremy

Jeremy, Clyde can probably hook you up, S & S used to list them similar to the second [chrome] one with a screw in the middle, but I think S&S closed up though, I can't find them anymore. These are similar to other "period" GM cars and trucks, PM Clyde is your easiest plan I would think. Harry Mine was/is like the one on the left of this link: https://www.npdlink.com/product/clock-r ... 44234/1456
I would still message Clyde, he will look up and probably find the exact style that your came with if that's important to you, even if not let's support those that help with our cars, NPD won't if you have any questions.

I've got some, NOS. If you are interested I'll post pic's. Cheap too.

Nuts on the left, Knobs on the right.