Hearing a humming or grinding noise from your front wheels? This front wheel hub and bearing assembly could be the fix. It's a brand new, direct replacement from ASI Performance, designed for cars like the Chevrolet Impala and Pontiac Grand Prix (check your specific model to be sure!). It comes with a lifetime manufacturer warranty, which is pretty awesome. The hub has a 5-lug pattern (5x4.53 inches or 5x115mm), M12x1.5 studs, and includes an ABS sensor—so your anti-lock brakes will keep working right. Key specs: brake pilot diameter is 2.78 inches, hub pilot is 3.57 inches, flange diameter is 5.73 inches. It's made from steel with a polished, rust-protected finish. Part numbers include 513121, 29513121, WA513121. This is a complete hub assembly, so you get the bearing, hub, and sensor all in one. Makes the job way easier than pressing in old bearings. Perfect for DIYers or shops. Get your car rolling quietly and safely again!