Product Overview QA1's rear drop kits are the perfect solution for lowering the rear suspension of your 2007-2018 Silverado/Sierra 1500. Our fully bolt-in kits include powder-coated shackles, hangers, and QA1 Stocker Star shocks, ensuring hassle-free installation and superior ride quality. Achieve a sleek, sporty look for your truck, matched with an incredible ride quality.Single-Adjustable Shocks QA1 single adjustable shocks deliver exceptional ride quality and performance to your truck. With the simple turn of a dial, you can effortlessly switch between a comfortable cruise and a more aggressive feel, making them ideal for daily driving or twisty backroads. Rear Shackles and Hanger KitsQA1's Rear Shackle and Hanger Kits are the ultimate solution for lowering the rear of your truck without compromising ride quality. Made from heavy-gauge steel with a powder-coated finish and top-notch hardware, our kits guarantee long-lasting performance in any driving conditions.Easy, Bolt-In InstallationOur commitment to thoughtful product design is evident in every fully bolt-in kit we produce, which guarantees a hassle-free installation process.Best In-Class Lifetime WarrantyRegister at QA1.net/warranty for lifetime coverage of your QA1 shocks.Made in the USAQA1 truck suspension is proudly made in Lakeville, Minnesota. Fitment NotesAxle U-bolts not included Requires use of QA1 spanner wrench T114W or T115W