Orion Motor Tech 4pcs 2" Wheel Spacers 5x4.75 | 12x1.5 Studs for Chevy Corvette Camaro S10 S15 GMC Jimmy Sonoma Typhoon & Cadillac Oldsmobile Pontiac Thickness: 2 inches Vehicle Bolt Pattern: 5 x 4.75 inches / 5x120.7 mm Wheel Bolt Pattern: 5 x 4.75 inches / 5x120.7 mm Thread Size: 12 x 1.5 STUDS Center Bore: 3.429 inches / 87.1 mm Forged Aluminum Alloy: made of Aerospace Grade 6061-T6 Aluminum, ensuring the highest level of performance and durability for your automobile, T6 heat treatment can greatly improve the rigidity. Precisely Machined: CNC machined with 60 degree taper to precise specifications, heat treated and hardened heavy duty spacers and studs for safety. Grade 10.9 Bolts: Made of Premium materials, ensuring outstanding performance Increase Stability and Handling: widen your vehicles wheel base, increasing overall stability and providing you with better handling. Aggressive appearance, with the widened track base, your favorite vehicle will get a cooler look Before installing wheel spacer adapters, please make sure that you have bought the compatible wheel spacer adapters for your vehicle. You can easily check by placing one wheel spacer adapter onto the rim, screw in the nuts manually, if you can do that without feeling any restriction, then you have got the appropriate wheel spacer adapter for your vehicle. If your OEM studs are longer than the spacer&#039;s thickness, you need to shorten the lug studs by grinding them down or replacing with shorter ones. 1979-1985 Buick Rivera FWD - <u>Not Fit for 1986-1999 Rivera</u> 1979-1985 Cadillac Eldorado - <u>Not Fit for 1986-2002 Eldorado</u> 1976-1980 Cadillac Seville - <u>Not Fit for 1981-2004 Seville</u> 2004-2009 Cadillac XLR 2004-2009 Cadillac XLR-V 1982-2002 Chevrolet Camaro - <u>Not Fit for 1967-1981 or 2003-2015 Camaro, Different Studs</u> 1984-2015 Chevrolet Corvette All Series 1982-2004 Chevrolet S-10 Pickup 2WD-4WD 1983-1994 Chevrolet S-10,S-15 Blazer 1982-2002 GMC Jimmy 2WD-4WD 1991-2004 GMC Sonoma 2WD 1992-1993 GMC Typhoon 1991-2001 Oldsmobile Bravada 1982-2002 Pontiac Firebird - <u>Not Fit for 1968-1981 Firebird, Different Studs</u>