Ninety-Eight FWD V6-181 3.0L (1985)
Clutch: All Technical Service Bulletins
A/T - Revised 4TH Clutch Reaction Plates
SUBJECT
NEW PLATES - 4TH CLUTCH REACTION, FORWARD
CLUTCH, LO AND REV WAVED
MODELS/YEARS
ALL 1980-1991 MODELS EQUIPPED WITH HYDRA-
MATI C 3T40, 4T60 AND 4T60-E TRANSAXLES
(RPO MD9, ME9, M13)
NUMBER:
91-T-14
CORP.REF.NO: 077136
DATE:
October 1990
SECTION:
4T60
Figure 1 - New 4th Clutch Plate Assembly
This bulletin covers new 4th clutch reaction plates for the HYDRA-MATIC 4T60 and 4T60-E transaxles; and new forward clutch and lo and reverse
waved plates for the HYDRA-MATIC 3T40. All three new plates will have blackened edges, and the flat surfaces will have some lightly blackened
areas. The new plates are made with a new process to aid manufacturing. A by-product of this new process is that the edges will be blackened, and the
flat surfaces will have some lightly blackened areas. The illustration shows an example of a 4th clutch reaction plate with blackened areas and edges. The
forward clutch and lo and reverse clutch waved plates will have similar markings.
SERVICE PROCEDURE:
Replace the 4th clutch reaction plates if severely warped. Replace the 4th clutch reaction plates, forward clutch waved plate, or the lo and reverse waved
plates if they have obvious large overheated, discolored areas that mate to the fiber material plate. Heat discoloration on the plate back side (non-fiber
mating surfaces) should be considered normal, unless the plate is warped.
DATE OF PRODUCTION CHANGE:
Beginning July 25, 1990 (Julian Date 206), some 1991 HYDRA-MATIC 4T60 and HYDRA-MATIC 4T60-E transaxles were built with the new 4th
clutch reaction plates. As of September 10, 1990 (Julian Date 253) all models should have the new reaction plates.
Additional production changes that include the new forward clutch and lo and reverse waved plates are scheduled for all 1991 HYDRA-MATIC 3T40
transaxles beginning October 10, 1990 (Julian Date 283).
SERVICE PARTS INFORMATION:
The new parts will be available when the previous parts are depleted.
SERVICE MANUAL REFERENCE:
Refer to the appropriate Service Manual for proper disassembly and assembly procedures.
