2pc 1.25" Black UberTechnic Wheel Adapters Spacers 5x4.5 to 5x5.5 (CHANGES BOLT PATTERN) 73.1mm Bore and 1/2"x20 Studs/Nuts (5x114.3 to 5x139.7) 32mm [CHANGES BOLT PATTERN] These Adapter Spacers will only work for you if your vehicle is 5x4.5" (5x114.3) bolt pattern AND your wheels are 5x5.5" (5x139.7) bolt pattern. See description for other important information. [APPLICATIONS] Jeep, Ford, Lincoln, Mercury, Mazda with 5x4.5" (5x114.3) Bolt Pattern and 1/2"x20 Threaded Studs [SPECIFICATIONS] Pack of 2. 1.25" (32mm) Thickness | 73.1mm Hub Bore | 1/2"x20 Threaded Studs/Nuts [BOLT PATTERN INFORMATION] 5x4.5" (5x114.3) Vehicle Bolt Pattern | 5x5.5" (5x139.7) Wheel Bolt Pattern [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.