8x165.1 Wheel Adapters Spec: Set of 2, 2 inch thickness per spacer, Hub centric: 126.15mm, Thread Pitch: 14x1.5 Fitment for Wheel Spacers: Compatible with 1988-2000 C2500 C3500 K2500 K3500 Pickup (8 Lug), 1997-2020 Express 3500, 2001-2006 Silverado 1500 HD 1999-2010 Silverado 2500, 1999-2010 Silverado 3500, 2000-2013 Suburban 2500, 2002-2006 Avalanche 2500, 1997-2020 Savana 2500 3500 (only fit 8lug), 1999-2010 Sierra HD 1500 2500, 1999-2010 Sierra 3500, 2000-2013 Yukon XL 2500, 2014-2018 Ram 2500, 2014-2020 Ram 3500 Package Include: Come with 2 PCS Wheel Spacers, Note: 1. If the screw rod protrudes from the surface of the aluminum hub, please note that the back of the hub needs to have grooves. 2. If the studs is not long enough, it is recommended to use an ET extended nut, It's very important High quality and Fine Forfing Process: Our wheels spacers are made of high quality forged 6061-T6 aluminum alloy badges, which undergo continuous forging process, strong and not prone to breakage. Moreover, our spacers are carefully crafted with CNC precision machining to ensure excellent precision with 0.02mm tolerance and provide excellent surface quality