nice rack!
I was thinking the same thing. Looks like a Vic Hickey product. In the 1970's Hickey was to Blazers what Bill Stroppe was to the first generation Broncos. He actually worked for GM at one time before breaking away and starting his own aftermarket company. In 1976 he was inducted into the Offroad Motorsports Hall of Fame. Some of those parts might be worth something to someone if they are in good shape. When you take it off, look all over and under it for a brand to be sure. If you're too young to know of Vic Hickey you can Google him and learn all about the history of him and his company. Hickey modified trucks and Blazers were on a lot of magazine covers in the 70's. I remember an article in Popular Mechanics that compared the early Blazer with the early Bronco. Of course the Blazer kicked but .in every category>