Includes our new torsion bar relocation brackets that keep the torsion bars in their factory location “ no need to lower the torsion bars to lift!6'' lift kits - Allows for 37x12.50 on a 9" wide wheel with zero offset.Available with ReadyLIFT Falcon 2.1 Monotube F/R shocks.Includes important differential drop brackets and CNC-machined billet Aluminum CV axle spacers.NOTE: Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately. Custom U-bolt length may vary by vehicle application. If the ReadyLIFT kit's standard U-bolts are too short, ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.