Glovebox should have a build sheet with all the option codes (if it is still there). Maybe post up some pics, but over the past 32 years a lot of things could have been changed on the truck.How do I know if my truck is a Cheyenne, Scottsdale, or Silverado? Title does not specify. Previous owner re-painted and I see no indication on the body. I tried looking the VIN up on several websites, to no avail.