Manufactured by MaxTrac Suspension | 413710 | 2011-22 Silverado/Sierra 2500/3500, 2015-23 F150, 1999-23 F250/F350 Lowering Shackles - 1 inch Drop Height, These Are 1" Drop Shackles For 2011-2019 Silverado/Sierra 1500Hd/2500/2500Hd/3500 (8-Lug Models)and 2015-2020 F150 2Wd/4Wd and 1999-22 F250/350 , Maxtrac lowering kits are comprised of several individual components designed to properly lower your vehicle. The rear lowering can be done by shackles, hangers, flip kits, lowering blocks or coil springs in some applications. No matter which parts your truck uses you can rest assured in knowing that Maxtrac has you covered with the highest quality parts at an affordable price. Product information updated on 2024-07-04. This product can ship by Small Parcel