A/T - THM 700-R4 Service/Parts Information: Overview

Number 87-7-12 Date 2/87

SERVICE AND PARTS INFORMATION FOR
Subject: TRANSMISSIONS WITH AND WITHOUT AUXILIARY CONTROL VALVE ASSEMBLIES


1987 SAFARI WAGON AND FIREBIRD MODELS EQUIPPED WITH THM 700-R4 (MD8)

A 1987 model THM 700-R4 transmission may be built with or without an auxiliary control valve assembly (AUX V/B). Identification, service procedures, new parts and fluid passage information for this change are provided in this bulletin.

IMPORTANT: The 1987 GM Service Parts Catalog printed in September, 1986 gives information for a 1987 transmission built with an AUX V/B. Use of this printed information on a transmission built without an AUX V/B can create a misbuild.

Additionally, other changes to the 1987 THM 700-R4 transmission that affect service procedures and/or new part information are also included.

Figure 1:

Date Of Changes

By October 6, 1986, (Julian Date 279) all 1987 THM 700-R4 transmission models were built with the AUX V/B. Also, all 1987 Service Replacement Transmission Assembly (SRTA) models are built with the AUX V/B (refer to Figure 1).