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TRD Sway Bars typically provide a 25% to 100% stiffer ride than stock. They are constructed of high-quality spring steel and powder-coated to prevent corrosion and road damage. Tundra TRD Rear Sway Bar is NOT applicable for vehicles equipped with the either of the following Genuine Accessory Hitches: PT228-34073 (Resin Bumper Hitch) PT228-34074 (Steel Bumper Hitch) However, the Rear Sway Bar is applicable to all vehicles equipped with the Factory Tundra Hitch. https://www.bamwholesaleparts.com/oem-parts/toyota-2007-17-tundra-trd-sway-bar-ptr1134070