J.W. Performance Rear Support GM Powerglide Billet Aluminum G Force Performance Products such as dirt and pavement

such as dirt and pavement racing

940 in Long

980 in Stroke

P/S & Alt accessory drive brackets

1967-1976 Buick Riviera

J.W. Performance Rear Support GM Powerglide Billet Aluminum G Force Performance Products such as dirt and pavementProduct Description: Governor Support Billet Needle Bearing Hardware Included Aluminum Gold Anodized Powerglide J. W. Performance Transmissions is a manufacturer of automatic Transmissions and component parts for circle track, drag racers, off road racers, street and strip enthusiasts. J. W. Performance Transmissions, Inc. began its operation in 1976 with one goal in mind: To provide the highest quality product and customer service in the business.