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Spring rateing for 70 455 GS


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You may already have this info.since I cannot find the spec's for the '70 GS455, but the '71 GS455 w/ac Federal Mogul part number is CS5536 which is 15.13" free length, .690 wire diameter and 487 lb/in spring rate. Oddly enough, this is the same spring used in the '70 350 Sport Wagon w/o air. The '70 Sport Wagon w/air is CS5450, which is slightly longer at 15.63" free length, .690 wire diameter and 450 lb/in rate. They are both the same diameter and mounting style and would be interchangeable

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