Bulletin BES 01-12 Wheel Stud Removal Subject: The use of tool number J 6627-A for stud removal may damage the wheel hub inner seal. Discontinue use of this tool number. The fingers of the above-Mentioned tool, extend too far down the back of the wheel hub and bearing assembly. The seal can easily be damaged; water intrusion may then reduce the life of the bearing assembly. Note: if the seal is damaged, it is recommended that the assembly be replaced. Vehicle Involved: 1992-1999 Buick Riviera 1992-2000 Buick Century, LeSabre, Park Ave, Regal 1992-2001 Cadillac DeVille, Eldorado, Seville 1992-1996 Chevrolet Lumina APV 1997 Chevrolet Corvette (C-5) 1997-2000 Chevrolet Venture 2000 Chevrolet Impala, Monte Carlo 1992-1999 Oldsmobile Aurora, Eighty Eight, Regency 1992-2000 Oldsmobile Silhouette 1998-2000 Oldsmobile Intrigue 1992-1997 Pontiac Trans Sport 1992-2001 Pontiac Bonneville, Grand Prix 1999-2000 Pontiac Montana Repair Procedure: Do not remove wheel studs with a hammer. New tools are available and recommended for this procedure. Use either tool number J-35917 or J-43631 to remove the wheel studs for the above-mentioned vehicles. In addition to using these tools, the following vehicles require that the front wheel hub bearing be removed from the aluminum knuckle to replace the wheel stud. 1995-1999 Buick Riviera 1997-2000 Buick Century, Park Avenue, Regal 2000 Buick LeSabre 1997-2000 Cadillac DeVille, Eldorado, Seville 1997 Corvette (C-5) 1997-2000 Chevrolet Venture 2000 Chevrolet Impala, Monte Carlo 1995-1999 Oldsmobile Aurora 1997-2000 Oldsmobile Silhouette 1998-2000 Oldsmobile Intrigue 1997-1998 Pontiac Trans Sport 1997-1999 Pontiac Montana 2000 Pontiac Bonneville NAPA Brake and Chassis ■ 4400 Prime Parkway ■ McHenry, IL 60050 ■ (815) 363-9000.