Supports the vehicle while allowing the wheel to rotate Maximum lateral stiffness for optimum ride, handling, and driving dynamics GM OE parts are built to help withstand potholes and designed to maximize seal life GM OE bearing designs are dimensionally optimized to work with their mating parts GM-recommended replacement part for your GM vehicle's original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function