The purpose of the Chevrolet Blazer Pinion Bearing is to allow the pinion gear of the differential to spin freely. As a result, the power is transmitted quietly and evenly to the drive wheels. Designed to absorb the gear under load, the Pinion Bearing sits deep inside the rear differential on most rear-driven Blazer models. It prevents premature wear due to friction, limits heat, and the rattles that warn of trouble. The driveshaft and ring gear are correctly aligned through the action of precision bearings that are packed in lubricant. This helps to eliminate the metal-to-metal wear that would quickly destroy gears and seals. Over the years, Chevrolet applied two main differential layouts in the Blazer line, the conventional open unit and the limited slip design, yet both rely on the same style of Pinion Bearing to stabilize the pinion shaft. In reality, it is just torque division between wheels and not how the Pinion Bearing performs its task that varies; hence, the replacement parts and installation steps remain almost the same on every variant. When a Pinion Bearing is tired, it usually starts to whine or hum. If you ignore this sound for too long, it can cause damage to the gear, which could be costly to fix. So, be sure to check your Pinion Bearing for lubrication often and be quick to swap it out when needed. All Chevrolet enthusiasts will want their Blazer's drivetrain to last.
Each OEM Chevrolet Blazer Pinion Bearing we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.