INFORMATION ON NEW TRANSMISSION OIL FILTER ASSY.

SUBJECT: INFORMATION ON NEW TRANSMISSION OIL FILTER ASSEMBLY

MODELS: 1994 CHEVROLET CAPRICE, CAMARO, CORVETTE 1994 BUICK ROADMASTER 1994 CADILLAC FLEETWOOD 1994 PONTIAC FIREBIRD 1994 CHEVROLET AND GMC C/K AND S/T TRUCKS 1994 CHEVROLET AND GMC M/L AND G VANS 1994 OLDSMOBILE BRAVADA

TRANSMISSION APPLICATIONS:

1994 HYDRA-MATIC 4L60-E (M30)

THIS BULLETIN IS BEING REVISED TO CLARIFY TRANSMISSION USAGE PLEASE DISCARD BULLETIN 377142.

BULLETIN COVERS:

NEW PRODUCT INFORMATION FOR 1994 HYDRA-MATIC 4L60-E TRANSMISSIONS. BE CERTAIN TO FAMILIARIZE YOURSELF WITH THESE UPDATES TO PROPERLY REPAIR THE 1994 HYDRA-MATIC 4L60-E TRANSMISSION.

DATE OF PRODUCTION CHANGE: (FIGURE 1 AND 2) ON AUGUST 10, 1993 (JULIAN DATE 222), HYDRA-MATIC 4L60-E TRANSMISSIONS WERE BUILT WITH A NEW FILTER SEAL (ILL. 71) AND TRANSMISSION OIL FILTER ASSEMBLY (ILL. 72).

THE PREVIOUS TRANSMISSION OIL FILTER ASSEMBLY AND FILTER SEAL HAD AN ASSEMBLY METHOD OF INSTALLING THE SEAL ON THE FILTER NECK AND THEN INSTALLING THE FILTER IN THE TRANSMISSION.

WHEN USING THE NEW FILTER SEAL AND TRANSMISSION OIL FILTER ASSEMBLY, THE FILTER SEAL MUST BE INSTALLED IN THE TRANSMISSION FIRST AND THEN INSTALL THE TRANSMISSION OIL FILTER ASSEMBLY INTO THE TRANSMISSION.

NOTE: THE NEW FILTER SEAL AND TRANSMISSION OIL FILTER ASSEMBLY CAN BE USED ON ALL HYDRA-MATIC 4L60-E TRANSMISSIONS 1993-1994. THE NEW FILTER SEAL AND TRANSMISSION OIL FILTER ASSEMBLY CANNOT BE USED ON ANY HYDRA-MATIC 4L60 TRANSMISSION.

THE NEW FILTER SEAL CANNOT BE USED WITH THE OLD TRANSMISSION OIL FILTER ASSEMBLY AND THE NEW TRANSMISSION OIL FILTER ASSEMBLY CANNOT BE USED WITH THE OLD FILTER SEAL.

FIGURES: 2

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER." THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS OCCURRING ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.

COPYRIGHT 1993. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.