For 1990-2009 cars

# INFO. ON REV. INTERMEDIATE BAND FRICTION MATERIAL

#### SUBJECT: INFORMATION ON REVISED INTERMEDIATE BAND FRICTION MATERIAL

#### MODELS: 1994 BUICK CENTURY AND SKYLARK 1994 CHEVROLET CAVALIER, CORSICA, BERETTA AND LUMINA MINIVAN 1994 OLDSMOBILE CUTLASS CIERA, ACHIEVA AND SILHOUETTE 1994 PONTIAC SUNBIRD, GRAND AM AND TRANS SPORT

TRANSAXLE APPLICATIONS: HYDRA-MATIC 3T40 (RPO MD9)

TRANSAXLE MODELS: ALL 1994 3T40 MODELS

A REVISED INTERMEDIATE BAND WAS INTRODUCED AT THE START OF 1994 MODEL YEAR PRODUCTION. THE INTERMEDIATE BAND FRICTION MATERIAL WAS CHANGED FROM A BROWN MATERIAL TO A GRAY/BLACK MATERIAL. THIS CHANGE WAS MADE TO ENHANCE DURABILITY.

WHEN SERVICING A 1994 HYDRA-MATIC 3T40 TRANSAXLE, DO NOT ASSUME THAT THE INTERMEDIATE BAND IS BURNED/DAMAGED DUE TO ITS DARK COLOR. THIS DARK COLOR IS NORMAL. INSPECT THE INTERMEDIATE BAND FOR SCORING, CHUNKING OR HEAVILY WORN FRICTION MATERIAL. INSPECT THE DIRECT CLUTCH HOUSING AND DRUM ASSEMBLY FOR SCORING OR SIGNS OF EXCESSIVE HEAT. THE INTERMEDIATE BAND AND/OR DIRECT CLUTCH HOUSING AND DRUM ASSEMBLY SHOULD BE REPLACED ONLY IF THE ABOVE LISTED DAMAGE IS FOUND.

THIS REVISED INTERMEDIATE BAND WILL SERVICE ALL PAST MODEL HYDRA-MATIC 3T40 TRANSAXLES AND WILL SUPERSEDE THE PREVIOUS INTERMEDIATE BAND WHEN SERVICE STOCK IS DEPLETED.

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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 1994. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.