WHEEL SPACERS KIT FUNCTION: Positions your wheels 2 inch outward Allows installation of wider wheels Increases your vehicle's trackwidth Hydraulic PrePressed Studs eliminate the risk of vibrations Improves the look of your vehicle WHEEL SPACERS SPECIFICATIONS: Material: Forged 6061T6 Aerospace Grade Aluminum. Bolt Pattern: 6x5.5 to 6x5.5(6x139.7 to 6x139.7) Thickness: 2(50.8mm) Hub Centric: 78.1mm Stud/Nut Thread Pitch: M14x1.5 Quantity: 4 PACKAGE INCLUDES: 4 x Wheel Spacers 24 x Open End M14x1.5 Threaded Studs/Nuts 2 x User Manual Remarks: One color box includes 2 Wheel Spacers and 1 User Manual. PART FITMENT INFORMATION: Chevy Models: 20072013 Avalanche 20022006 Avalanche 1500 20002006 Sonora 20072021 Cheyenne 20032014 Express 1500 19962002 Express 2500 20032021 Express 2500 (only fit 6 lug vehicle) 20122016 Suburban 20002014 Suburban 1500 19921999 K1500 Suburban 20142021 Silverado 19992021 Silverado 1500 2007 Silverado 1500 Classic 19952000 Tahoe 4WD 20012021 Tahoe 19882000 C2500 GMC Models: 19992021 Sierra 1500 20032014 Savana 1500 20002021 Yukon 20152021 Yukon XL 20002014 Yukon XL 1500 Cadillac Models: 19992021 Escalade NOTICE: Never modify Wheel Spacers/Adapter. Never remove factoryinstalled studs on Wheel Spacers/Adapter. Never use an impact wrench for Wheel Spacers/Adapter installation. Do not stack multiple Wheel Spacers/Adapt