I tacoed my 81 Blazer frame and used a 74 Blazer frame as a replacement. I was very time consuming and some of the cross members were in the wrong place. The Cross members got in the way of the body and a couple of the bends in the frame where different. I have a large ford tool so it was a relatively easy swap, like I said though it's very time consuming. Check the cross members and shape of the frame right behind the cab, if there close go for it!
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