aFe Control is proud to release the PFADT Series, SKF performance wheel bearing for 1997-2008 Corvette C5/C6. This performance wheel bearing is designed to improve the performance, cornering and stability characteristics that race and super cars demand. The SKF X-Tracker is a performance-engineered hub unit consisting of a double row angular contact ball bearing arrangement in which the outboard row has a larger diameter and contains more balls than the inboard row. Designed as a direct fit installation, no modifications is necessary. The performance wheel bearing can be used with factory shock absorbers, or for a even better ride, try our Johnny OConnell signature series shock upgrade. *Features:* * Improved steering accuracy and dynamic vehicle behavior * Dramatically increased durability * Reduced caliper piston knock-back and braking times * Non-symmetrical rows with more balls at a higher diameter on outboard side * Less than 10 micron run-out on flange face * Black oxide coating for improved corrosion resistance * Integrated speed sensor for 1997-2008 Corvettes * Direct fit Installation, no modification is necessary