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The Hellwig LP-35 helper spring offers up to 3,500 lb level load capacity for select GM 1500 and 2500/3500 models across supported years. It is a single-rear-wheel, multi-leaf solution and does not fit dual rear wheel configurations. Installation requires the correct LP mounting kit and careful fitment verification; review model and year compatibility notes prior to purchase.
Hellwig 99-13 GMC 1500 Load Pro-Up To 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit
