My 1986 El Camino has a completely illegible door vin decal. Is there a resource that provides what information is supposed to be listed on that decal? I do still have the RPO decal that was in the glove compartment. I found companies that will reproduce them; however, I do not know what information was originally listed on it. I know it was not altered; it is just worn. My dad bought it in 1990 from local chevy dealer.