ECCPP 5x4.75 Hubcentric Wheel Spacers 1 inch 5x4.75 to 5x4.75 spacer for Chevy Impala Blazer Buick Riviera GMC S15 Jimmy Pontiac(12x1.5 Studs 4X) HUB CENTIRC WHEEL SPACERS 1 INCH FITMENTSFit for 2003 2004 2005 2006 2007 2008 2009 Cadillac XLR 1980 1981 1985 1983 1984 1985 Pontiac Phoenix 1984-1997 Pontiac Trans Am 1990-1997 Pontiac Trans Sport 1982-1991 GMC S15 1990-2005 GMC Jimmy SPACERS 5X4.75 TO 5X4.75 SPECIFICATIONSThickenss:1" or 25mm;Vehicle Bolt Pattern:5x4.75 or 5x120.7mm;Wheel Bolt Pattern:5x4.75 or 5x120.7mm;Thread Pinch:12x1.5;Inner Diameter:70.5mm WHEEL SPACERS 1 INCH BENEFITSDesigned to move the wheels further out from the hub,giving your vehicle a more aggressive stance and allows for better handling characteristics.They also increase tire clearance,fix brake caliper clearance issues,allow installation of lift/lowering kits and wider, larger, or high traction tires. 5x4.75 WHEEL SPACERS SAFETYMade from the best true T-6 billet aluminum,with heat treated and hardened 10.9 grade bolts pre-installed.The anodized surface provides additional resistance to corrosion.Exceptionally sturdy and lightweight compared to steel spacer. HUBCENTRIC WHEEL SPACERS 5X4.75 PlEASE NOTERequired that you Recheck your vehicle compatibility in Product Description BEFORE buying these 5 lug hub centric wheel spacers, if you have no ideas, please mail us for help.