Manufactured by MaxTrac Suspension | 411420 | 2011-24 Silverado/Sierra 2500 and 2015-23 F150 Rear Lowering Shackles - 1.5 inch Drop Height, 2011-22 Silverado/Sierra 2500/3500 and 2015-20 F150. Also fit the 2020-22 Silverado/Sierra 2500/3500 with 1.5 inch drop, 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