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Re: Dad's 1979 GMC Heavy Half Transformation
Is that per each spring or the pair? That does seem a bit high. Just for comparison tuff country's (leaf) HD 4" lift springs are 495 lbs / in. If your front axle weight is ~2,500 lbs and you have two springs at 1060 lbs / in. you won't even have 1.25" of compression.
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