RockTrix for Precision European - 4pc 1" Thick Wheel Spacers 5x5.5 to 5x5.5 with 1/2" Studs - for Dodge Ram 1500, Ford F100 F150 E100 E150 Bronco, Jeep CJ3 CJ5 CJ6 CJ7 Scrambler, Silver 5x139.7 [APPLICATIONS] Can fit on many Dodge, Ford, & Jeep vehicles with 5x5.5" (5x139.7) Bolt Pattern. See Description to see exact Year/Makes/Models. Do this prior to placing your order to prevent fitment problems. [IMPORTANT FITMENT INFORMATION] 1) Measure wheel gap for clearance. You will need at least 1.0" (25mm) of fender clearance to prevent the wheel/tire from hitting the fenderliner. 2) Measure your vehicle's wheel studs. It must be less than 1.0" (25mm). 3) Check the thread size of your vehicle's wheel studs. It must be 1/2"x20. [SPECIFICATIONS] Set of 4. 1.0" (25mm) Thickness | 5x5.5" (5x139.7) Bolt Pattern | 108mm Hub Bore | 1/2"x20 Threaded Studs/Nuts [MANUFACTURING] CNC Machined to exact specifications from Aerospace Billet Aluminum. Undergoes anodizing process to prevent corrision. Includes pre-installed heat treated 10.9 grade studs. [PRODUCT BENEFITS] Gives your vehicle a more aggressive stance. Improves handling characteristics and stability. Fixes brake caliper clearance issues. Increases tire clearance to allow installation of wider wheels and tires.