The GMC Jimmy Pinion Bearing lets the differential's pinion gear spin smoothly so torque reaches the wheels without grind or wobble. Working inside either an open or limited slip differential, the Pinion Bearing holds the gear on its axis, keeps backlash tight, and reduces friction that heat and fluid loss would otherwise magnify. Owners of the GMC sport utility know that a Jimmy with a healthy drivetrain stays quieter on long drives. When healthy, this small part prevents the rear wheels from shaking during acceleration and guards ring gear teeth from premature wear. Drivers usually notice trouble when a humming sound comes from the differential area, a clear warning that the Pinion Bearing lacks lube or has pitted surfaces. Some editions of the vehicle applied the same tapered roller style front and rear, while later versions paired a larger rear Pinion Bearing with a crush sleeve to fine tune preload, yet both designs rely on the temperature differential install method of freezing the shaft and heating the bearing for a tight interference fit. Replacing the Pinion Bearing promptly keeps your GMC running quiet and preserves the solid cornering feel that makes a Jimmy handle predictably across town or on a trail.
Each OEM GMC Jimmy 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.