I have 2 727 push buttons trannys 1962 & 63 versions-- I'm parting one out on the ebay now -- if any of you slanters/ racers need parts let me know-- I have never dismantled a tranny before-- but it was not too hard to get some internal pieces out.
email for pics more info, Lawrence

Can you remove the 16-tooth speedo pinion from the end of the 63 speedo cable?

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63 Signet / 10 inch front drums / weber 2bbl / HEI / 2.76 rear end

what color are you looking for? These 2 tranny's did not have the speedo cable but I have a couple of the gears from other cars.