Full Size Chevrolet V8-305 5.0L (1984)
Clutch: All Technical Service Bulletins
A/T - Delayed Park/Neutral to Drive Engagement
Number:
89-92-7A
Section:
7A
Date:
MARCH, 1989
Subject:
DELAYED PARK/NEUTRAL TO DRIVE SHIFT ENGAGEMENT
Model and Year:
1981-89 CHEVROLET WITH THM 200-4R TRANSMISSION
TO:
ALL CHEVROLET DEALERS
This bulletin covers service and parts information for a new forward clutch housing and shaft assembly. The new assembly has a larger forward clutch
feed orifice in the forward clutch shaft. The new forward clutch housing and shaft assembly may address a delayed drive engagement concern (refer to
"Service Action"). There are no changes to the forward clutch die cast piston and clutch pack that were introduced with the neutral to drive (feed-bleed)
garage shift package. (Refer to Dealer Service Bulletin 87-151, Section 7A, dated May, 1987.)
Figure 1 - THM 200-4R Transmission Identification Information
DATE OF PRODUCTION CHANGE:
(Figure 1)
August 24, 1988, Julian Date 237, the new forward clutch housing assembly introduced on all 1989 THM 200-4R models.
Figure 2