eaton differential, posi performance, limited slip, 28-spline, for buick, for oldsmobile, for pontiac, 8.2 in, each

Big torque doesn't have to mean big traction problems. Eaton Posi Performance differentials combine carbon friction discs with precision-forged gears to give you great traction, even under higher torque loads. Plus, the carbon friction discs produce smooth, quiet performance for the life of your vehicle.