[Ironhorse]

I have a '73 print date 1974 Chevrolet Accessories booklet that shows what looks to be those very same auxiliary steps to be for a Blazer. Not the best pic or camera but from the pic you can see that there were four separate offerings for the steps. Blazer, pickup/suburban, van and van w/sliding door. Try a Google search with the part number and see what that shows. Hope this helps somewhat.