Gain better performance from your lowered GM and protect your tire tread with Rough Country's 99-15 GM Cam Plates! These Cam plates offer additional adjustment to help bring your lowered alignment back to factory specs.When outfitting a vehicle with lowered suspension components and low profile tire and wheel combinations, the stock geometry changes. In some setups this can cause uneven tire wear, mainly to the inside of the tire, which can often go unnoticed. By using Rough Country's Cam Plates, you'll gain an additional 1 degree of positive caster and an easier, even wear on your tires! Also perfect for any lifted GM in need of camber adjustment. Best of all, this product is backed by Rough Country's Lifetime Replacement Guarantee!