− Decrease quantity for Shocks Bilstein Shock Box - 6-6.5 inch lift kit 2007-2018 GM 1500 4WD, 2011-2018 GM 2500-3500 HW 4WD (Rear Shocks) Quantity + Increase quantity for Shocks Bilstein Shock Box - 6-6.5 inch lift kit 2007-2018 GM 1500 4WD, 2011-2018 GM 2500-3500 HW 4WD (Rear Shocks) Add to cart