Check out Ebay Item #2453359475 (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=43954&item=2453359475&sspagename=STRK%3AMEBWA%3AIT) - do the date stamps look funny? Both of my cars have the K-1-9 stamped by the hole before the date code. What's the scoop?

Was it common for GM to stamp wheels with the YJ upside down ( One of those wheels is stamped that way )