A/T - THM 440 1st to 2nd Gear Shift Shudder
87cad6Bulletin No. T 88-5
File in Group 7
Number 167
Corp. Ref. No. 777121
Date Sept. '87
SUBJECT: 1-2 SHIFT SHUDDER - THM440-T4
MODELS AFFECTED: 1985-1987 DE VILLE, AND 1986-1987 ELDORADO AND SEVILLE
Some production and SRTA THM 440-T4 transaxles built prior to April 15, 1987 (Julian Date 105), may exhibit a 1-2 upshift shudder during light to moderate acceleration. This condition may be caused by out of flat (thickness variation) 2nd clutch plates. To repair this condition, replace the 2nd clutch plates with the service package described below. When servicing a transaxle for 1-2 shift shudder or performing any operation for which an overhaul package is used, discard the fiber plates from the package and the original steel and fiber plates from the 2nd clutch assembly. Use the appropriate service package listed below.
Part Number Application
8662914 Six fiber and six steel plates for
1987 transaxles
8662913 Five fiber and five steel plates
for 1985-1986 transaxles
NOTICE: 1987 steel plates are .075" thick. 1985 & 1986 steel plates are .088" thick. Do NOT interchange these plates.
Refer to the Service Information Manual Unit Repair section for Second Clutch Service Information and Procedure.
For warranty purposes, use Labor Operation K7535 at 6.0 hours for De Ville/Fleetwood and 6.6 hours for Eldorado and Seville.