1989 NEW PRODUCT INFORMATION THM 400/475

TRANSMISSION APPLICATIONS: SUBJECT:

1989 THM 400/475 1989 THM 400/475 HYDRA-MATIC HYDRA-MATIC 3L80/3L80-HD 3L80/3L80-HD TRANSMISSION (RPO M40) TRANSMISSION MODELS: VEHICLE APPLICATIONS:

ALL MODELS C,K,P,R AND V TRUCKS G VAN

(Revised to change No. of bulletin from 89-7200-101 to 89-7400-102)

Bulletin Covers:

SERVICE MANUAL REFERENCE: (Figure 1)

This information is an update to your 1989 Service Manual Transmission Diagnosis Section. A new model, DNA, was released after publication date.

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.