These set of 4 Wheel Spacers are 1.5 inches thick with a 5x5 inches or 5x127mm bolt pattern allows for extra clearance between the wheel and the wheel hub assembly increasing the offset which allows for larger tire installation to the vehicle. Wheel spacers also increase vehicle's performance in handling and traction. Wheel spacers extend the wheels outward the vehicle giving it a more agressive look, which also allows for large brake caliper installations or lift/lowering kits. Fits the following vehicles: 2007-2018 Wrangler JK 4WD 2007-2018 Wrangler JK Unlimited 4WD 2007-2010 Wrangler JK Unlimited 2WD 2006-2010 Commander XK 1999-2004 Grand Cherokee WJ 2005-2010 Grand Cherokee WK Wheel Spacer Specifications: Thickness: 1.5 inches or 38mm Wheel Bolt Pattern :5x5 inches or 5x127mm Thread Pitch: 1/2 inch x 20 Studs Hub Bore: 71.5mm This is a compatible replacement part manufactured by AA Ignition. This wheel spacer kit is NOT a genuine OEM part. Vehicle makes and their associated vehicle models and part numbers are used in this listing only to identify the vehicles this wheel spacer kit fits.