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I put my wheels for sale on here and several other places recently and want to put the age info on there but can't decipher any of the stamped info. They all have something similar to K-H101020 or K-H301008. They have nothing around the valve stem. There are several other numbers but from what I read this is the pertinent info. They also have a 14008687 number. Anybody shed any light on this for me?
These aluminum wheels were option YJ8 from '73*/'74 to '82 but there were several slight variations. The variations were polishing, black centers, and red striping. The black center around the lug nuts was from '76 to '79. KH in the numbering indicates they were made by Kelsey-Hayes, a very long time steel and aluminum wheel supplier for Corvettes. Examine the wheels more closely and you should find hand-stamped alpha-numeric date coding (~ 3 or 4 characters) -- maybe on the backside of the cylindrical part from the tire.
* They were on the options order form for '73 but the wheels had porosity problems so extremely few were ever released on a '73 Corvette. Practically all '73s with the YJ8 wheels had them added by their owners after '73.