Specs: Thickness : 1.50 Inch ｜ Forged 6061 T6 Aluminum ｜ Wheel Bolt Pattern : 8 on 6.50 8x6.50 ｜ Vehicle Bolt Pattern : 8 on 6.50 8x6.50 ｜ ID (Vehicle) : 121.3mm ｜ OD (Wheel) : 121.3mm ｜ Thread: M14x1.5 14x1.5 ｜ Color: Black ｜ 4 Pcs Always use AMAZON CONFIRMED FIT to validate product fitment to your vehicle. Widen your vehicle base and give your vehicle a more aggressive stance while improving handling and stability. Increase tire clearance, fix brake caliper clearance issues, allow installation of lift lowering kits and wider, larger, or high traction tires. Hub Centric Spacer provides a snug fit on the vehicle hub as well as the wheel which reduces vibrations and stress on lug nuts. This spacer is for a wheel hub diameter of 121.3mm only Fits ｜ SRW Single Rear Wheel Vehicles Front and Rear Our spacers are made from Forged 6061 T6 Aluminum. Each spacer is treated with a rust resistant black coating which significantly enhances the hardness and corrosion resistance. Studs are SAE 10.9. CNC lathes and milling machines ensures a precise fit to your vehicle. Wheel Accessories Parts 4 Pcs Hub Centric Wheel Spacers Adapters 8 on 6.50 8x6.50 1.50 Inch Thick M14x1.5 14x1.5 Thread Stud Fits 2011+ Ram 2500 3500 Single Rear Wheel Vehicles Only