A/T - Interchangeability Information/Precaution

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GMC NUMBER: 92-7A-63

GROUP: 7A Automatic Transmission

DATE: March 1992

CORPORATE
NUMBER: 267101


SUBJECT:
TRANSMISSION INTERCHANGEABILITY (INFORMATIONAL)

MODELS:
1988-1992 W4 WITH JATCO ELECTROMATIC TRANSMISSION


The 1992 W4 JATCO Electromatic transmission is not interchangeable with any previous model year transmissions. When replacing a JATCO Electromatic transmission in a W4 be sure to replace it with the proper part number. The 1992 transmission has had several major changes due to the higher torque and horsepower rating of the 1992 4BD2-TC engine. The correct part numbers are listed below in order to ensure correct transmission replacement.

SERVICE PARTS INFORMATION:

Description Part Number
1992 W4 JATCO Electromatic 97046475
Transmission
1988-1991 W4 JATCO Electromatic 94052322
Transmission


Important

Before replacing a JATCO Electromatic transmission, be sure to complete the diagnostic form and necessary paperwork as required by GMC Truck Service Bulletin 90-7A-126, published August 1991.