The first generation K5's I had put the numbers on the sticker on the glove box door,and on the drivers side door jamb,near the striker bolt,a metal tag is riveted on there.I have seen the sticker that is usually on the glove box located on the drivers side inner fenderwell under the hood too.The frame has numbers too,on the passenger side rail about halfway back--none of mine matched the vin--and supposedly the trucks were unmolested originals--never figured that out! /forums/images/graemlins/dunno.gif/forums/images/graemlins/crazy.gif