Manufactured by MaxTrac Suspension | 201940 | 2019-24 Silverado/Sierra 1500 2wd/4wd 3 to 4 Inch Rear Lowering Box Kit with shocks, Does not fit Trail Boss / AT4, Adaptive Ride Control and Monoleaf trucks. REAR FLIP KIT W/ HANGERS, SHACKLES, (2) MAXTRAC SHOCKS, 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 Courier