1999-2018 GMC Sierra 1500 1" Rear Drop Shackles Lowering Kit 2WD 4WD Style:Zerk ✘ Some models may require

✘ Some models may require modification/grinding due to smaller factory key retaining plate

A torsion bar puller (can be rented at most chain auto stores)

Our Pro-Billet Series wheel extension spacers are precision engineered to widen your track-width

This kit comes complete with 4 vibration isolator pads for quiet and smooth ride and all necessary high grade hardware including extended spring center pins

1999-2018 GMC Sierra 1500 1" Rear Drop Shackles Lowering Kit 2WD 4WD Style:Zerk ✘ Some models may require2x Rear High Strength Steel Shackles Precision CNC Machined for Outstanding Performance and Quality Proprietary Protective Coating to Prevent Oxidation, Corrosion & Rust Includes complete set of High Strength Installation Hardware Installation Instructions Notes: Will Fit 6 Lug Models Only. Supreme Shackle Drop Kits are engineered to lower the rear end of your truck by a full 1". Our Rear shackles are made of High Strength Carbon Steel and cut through