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73-75 Jimmy's and Blazers are hot and in their own league altogether, so a 77 isn't a good comparison if you are looking at values. One just sold for $127K https://www.classic.com/m/gmc/jimmy/2nd-gen/year-1975/ This one being a one owner low mileage unit unmolested and original adds a lot to its value. I guess we'll see if and when I sell it. Yes, they are in their own league. Highly sought after and top dollar on the auction block.