Smart @$$ comments of mine aside, tjkj2002 gave this good answer to this question in another thread:
Quote:
Look on the drivers door,there is a white sticker around there that will give you a month/year that your KK was built.On that same sticker(very bottom) there should be a MDH,Month Day Hour,to give you a more specific build date.My KJ's MDH is 021419,which means it was built in Febuary 14th at 1900 hours(7pm).
From thread
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=35261
Mine was built at 4pm on October 31, 2007. No sign yet that it's possessed, however...!