My bracket is bolted to the lower hole.On my frame there are 3 holes in a triangle shape.The lower hole is in farther than the outermost hole.And it was a threaded hole.I had to use nuts under my rails.
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70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires
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