RockTrix for Precision European - 4pc 1.25" HUBCENTRIC Wheel Adapters 6x4.5 to 6x5.5 (CHANGES BOLT PATTERN) 71.5mm bore and 1/2"x20 Studs for Dodge Viper Dakota Durango (6x114.3 to 6x139.7) Spacers [CHANGES BOLT PATTERN] These Adapter Spacers will only work for you if your vehicle is 6x114.3 or 6x4.5 bolt pattern AND your wheels are 6x139.7 or 6x5.5 bolt pattern. See description for other important information. [DODGE APPLICATIONS] 1992-2010 Viper. 1991-2003 Dakota. 1991-2003 Durango [SPECIFICATIONS] Pack of 4. 1.25" (32mm) Thickness | 71.5mm Hub Bore | 1/2"x20 Threaded Studs/Nuts [BOLT PATTERN INFORMATION] 6x114.3 or 6x4.5 Vehicle Bolt Pattern | 6x139.7 or 6x5.5 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.