Centerforce designed their N1086 Throwout Bearing for 1955-1981 Buick, Chevy, GMC, Oldsmobile and Pontiac. Each Throw Out Bearing (also known as a Release Bearing) sold by Centerforce is the highest quality available. In most applications, the bearing is a direct Original Equipment (O.E.) replacement. For most applications a self-aligning or self-centering throwout bearing is preferred. Bearings may appear off-center or improperly manufactured; however, rest assured, the bearing will align and center itself properly during normal usage. Sold individually. Centerforce highly recommends changing the pilot bearing/bushing and release bearing during every clutch install. Centerforce N1086 Throwout Bearing Features: For 1955-1981 Buick, Chevy, GMC, Oldsmobile and Pontiac Pressure Plate Style: Diaphragm Depth/Height: 1.265 in. Face Type: Round Self-Aligning: No Throwout Bearing Style: Standard Retention: Groove Sold Individually Centerforce strives to supply only the best quality bearings available, and they are designed to provide dependable service on the street and drag strip.