Cutlass Supreme V8-307 5.0L VIN Y 4-bbl (1985)
Valve Body: All Technical Service Bulletins
A/T - Delayed Neutral to Reverse Engagement
SUBJECT:
DELAYED NEUTRAL TO REVERSE ENGAGEMENT 1988-89 MODELS AND REVISED SPACER PLATES 1981-89 MODELS
MODELS/YEARS:
1981-88 CUTLASS SUPREME, 1981-89 CUSTOM
CRUISER, 1981-85 EIGHTY-EIGHT, 1981-84 NINETYEIGHT WITH 2004R TRANSMISSION (RPO - MW9)
NUMBER:
89-T-126
CORP. REF. NO: 977138 977139
DATE:
September 1989
SECTION:
7A
Figure 1 - Spacer Plate Identification Location
This bulletin contains information on design changes incorporated into 2004R transmission valve body spacer plates. The Lo/Reverse orifice in the
spacer plate has been enlarged to enhance Neutral to Reverse engagement performance of 1988-89 models (See Figure 1).
The revised spacer plates also include a new I.D. location. Previous spacer plates could not be identified while assembled in the transmission because the
identification letters were obscured by the valve body. A tab has been added at a different location (shown in Figure 1) and the identification letters are
now visible after assembly.
Figure 2 - THM 200-4R Transmission Identification Information
DATE OF PRODUCTION CHANGE: (Figure 2)
