Manufactured by MaxTrac Suspension | 2515108 | 2014-18 Silverado/Sierra 1500 ext/crew cab 1 inch Front Lowering Coils, Fits Extended & Crew Cab Models - Fits Suburban/Yukon Xl, Maxtrac has a full line of lowering coil springs, They are easy to install and will lower your suspension by 1 to 3 inches depending on the amount of drop you desire. These springs offer a comfortable, but firmer than factory, ride and will generally require a short shock to be installed. The come powder-coated to prevent rusting and discolouration. Product information updated on 2024-07-04. This product can ship by Small Parcel