MaxTrac pair of 4" rear lowering coils for 2007–2014 GM C/K1500 and SUVs (2WD/4WD) are hot‑wound, single‑rate springs with grey powder coat. This matched pair yields an approximate 4" rear drop and requires shock extenders (MXT401004). Note: on Avalanche models vehicle weight will reduce the effective drop by about 1".
MaxTrac 07-14 GM C/K1500 SUV 2WD/4WD 4in Rear Lowering Coils (requires SHOCK EXTENDERS mxt401004)