
Replace and upgrade the factory rear leaf spring mount on your GM HD truck with the Rust Buster RB7844L left-side rear leaf spring mount. Fits 2011-2019 Chevy Silverado and GMC Sierra 2500HD and 3500HD models in both 2WD and 4WD configurations. Replaces GM part number 20909391 and includes a spring eye bolt. Built from heavy-duty 7-gauge steel, requires welding, ships with a protective oil coating, and is backed by a lifetime warranty.