For 1990-2009 cars

# THM 125C SRTA PROGRAM GUIDELINE INFORMATION

#### VEHICLE APPLICATIONS:

ALL VEHICLES EQUIPPED WITH THM 125C TRANSAXLES

#### BULLETIN COVERS:

EFFECTIVE OCTOBER 1, 1987, THE THM 125C SERVICE REPLACEMENT TRANSMISSION ASSEMBLY (SRTA) PROGRAM BEGINS. AT THE START OF THE PROGRAM, SRTA MODELS CAN BE ORDERED FOR ALL 1982 THROUGH 1986 THM 125C MODEL APPLICATIONS FROM YOUR LOCAL GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO) PARTS DISTRIBUTION CENTER. IN EARLY 1988, THE THM 125C SRTA PROGRAM WILL BE EXPANDED TO ALSO INCLUDE 1987 AND 1988 MODEL YEAR APPLICATIONS.

THE THM 125C SRTA PROGRAM IS CUSTOMER SATISFACTION DRIVEN AND PARALLELS THE EXISTING THM 440-T4 AND 700-R4 PROGRAMS. UNIT REPLACEMENT THROUGH SRTA REPRESENTS AN ADDITIONAL METHOD OF SERVICE WHICH GENERAL MOTORS DEALERS AND DIVISIONS CAN OFFER THE CUSTOMER IN INSTANCES WHERE MAJOR OVERHAUL IS NECESSARY. ADDITIONAL PROGRAM DETAILS ARE PROVIDED AS FOLLOWS:

SECTION PAGE

GENERAL GUIDELINES - REPLACEMENT OR OVERHAUL.......... 2

TRANSAXLE FLUID COOLER FLUSHER........................ 2

INSTALL CASE VENT ASSEMBLY............................ 2

SRTA PROCESSING PROCEDURES............................ 3-6

THM 125C TRANSAXLE IDENTIFICATION..................... 7

SRTA MODEL REPLACEMENT CHART.......................... 8

O GENERAL GUIDELINES - REPLACEMENT OR OVERHAUL

O DUE TO LIMITED AVAILABILITY OF ALL SRTA MODELS, SRTA USAGE SHOULD ONLY BE CONSIDERED FOR THE FOLLOWING CONDITIONS:

- REPAIRS IN WHICH THE PROJECTED COST EXCEEDS THE COST OF THE SRTA REPLACEMENT.

O DEALER THM 125C TRANSAXLE REPAIRS INCLUDE:

- ALL ON-CAR SERVICEABLE ITEMS.

- ALL INTERNAL REPAIRS WHICH ARE PROJECTED TO COST LESS THAN A SRTA REPLACEMENT.

O TRANSAXLE FLUID COOLER FLUSHING

#### IMPORTANT

TRANSAXLE FLUID COOLER FLUSHING MUST BE PERFORMED WHENEVER A TRANSAXLE IS REMOVED FOR SERVICE. IT IS ESSENTIAL TO FLUSH THE COOLER AFTER SRTA INSTALLATION, MAJOR OVERHAUL, IF FLUID CONTAM- INATED IS SUSPECTED, OR IN ANY CASE OF PUMP OR TORQUE CONVERTER REPLACEMENT. A COOLER FLUSHING TOOL, KENT-MOORE NUMBER J 35944, HAS BEEN SENT TO YOUR DEALERSHIP TO PROPERLY FLUSH THE COOLER. TIME ALLOWANCE TO USE THE COOLER FLUSHING TOOL IS 0.6 HOURS. THIS ALLOWANCE IS INCLUDED IN OPERATION NUMBER K7000 (TRANS R+R) FOR 1987-1988 MODEL YEAR LABOR TIME GUIDES AND CAN BE ADDED TO R+R ALLOWANCES FOR 1982 THROUGH 1985 MODEL YEARS.

O INSTALL CASE VENT ASSEMBLY

#### IMPORTANT

BEFORE INSTALLING THE THM 125C SRTA UNIT INTO THE VEHICLE, REMOVE AND DISCARD THE PLASTIC CASE VENT. (IT IS ONLY USED FOR SHIPPING PURPOSES.)

INCLUDED WITH EACH SRTA UNIT IS PACKAGE NUMBER 8652982 THAT CON- TAINS TWO METAL CASE VENTS. SELECT AND INSTALL THE SAME DESIGN METAL VENT AS THE ONE ON THE TRANSAXLE BEING REPLACED.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur 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 that 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.