Maxtrac 2-inch rear lowering shackles for 2011–2018 GM C/K1500HD/2500HD/3500HD (2WD/4WD) are steel, powder-coated grey and supplied as a pair with greasable bushings and sleeves plus Zerk fittings. They create a 2" rear drop and use urethane bushings to reduce binding, providing a durable, serviceable option for lowering modern heavy-duty GM trucks.
MaxTrac 11-18 GM C/K1500HD/2500HD/3500HD 2WD/4WD 2in Rear Lowering Shackles