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What's the best distributor for stock gears?

I need some gears and I have a bunch from CD players and things, but the ones I need require more specific ratios than I can get with found stuff. Does anyone know a good distributor of stock gears with a wide selection? (I ask because I don't want the cost of custom-making them if I can get a good selection AND a good deal) I am based in the US, but any international ones would work if there are none here or if any folk across the pond need some.

2 answers
Feb 27, 2009. 1:09 PMewilhelm says:
I've ordered all my gears from McMaster, Small Parts, or a distributor called, I think, SPI-DI or some similar letter combination that I can't figure out with 5 minutes of web searching. Obviously, their branding wasn't very good.
Mar 22, 2009. 8:07 PMewilhelm says:
I finally remembered: http://sdp-si.com/

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