LeSabre V8-307 5.0L VIN Y 4-bbl (1984)
Clutch: All Technical Service Bulletins
A/T - THM 200C Forward Clutch Design Change
SIL 88-15 (Apr)
SUBJECT: THM 200C
TRANSMISSION MODELS: All (Excluding 1984-85 CZ, JY)
1987 THM 200 C transmissions are being built with a new design "feed/bleed" system for the forward clutch. This system gives more cushioning during
forward clutch apply and can be used on certain past models to reduce a harsh PARK/NEUTRAL to DRIVE engagement feel.
August 4, 1986 (Julian date 216, Figures 1 and 2), these changes were introduced for all THM 200 C models:
Forward clutch assembly, minus check ball in housing (619)
Forward clutch piston assembly (623)
Additional waved plate (627)
