Fits Chevy GMC 2500HD (20 24) 7 Inch Lift Kit; NTD; Vertex Shocks; 10150 lift kits and parts This high performance HEI module Jones This high performance HEI module provides your plugs with more spark over the stock module vibration can be substantial and thus solid mounts are not recommended for the street effectively giving you more ground clearance and a much cleaner look that fits in better with the overall design of your new truck This all inclusive kit comes with everything you need to give your truck an aggressive look and enough increased ride height to run up to 37 inch tires with a non torsion drop design that keeps everything looking flush and clean underneath