My core support/fender tag had no information that would specifically designate it as a Warlock but paint codes could be a starting point.

With any luck the underhood sticker is still in place and legible...mine was gone.There is also always the possibilty that the hood could have been changed at some point or etc..etc...find the original color of the truck,see what panels actually match up from overspray if you can find some and go from there.Without a build sheet matching the VIN and all stamped numbers on body,there is no proof positive way I am aware of to ID these trucks other than what you see and can determine to be original to the package.