A/T - Loss of Power In Drive and Reverse
Bulletin 84-7-2Date April '84
Ref. No. 84-170-7
SUBJECT: LOSS OF POWER IN DRIVE AND REVERSE
MODELS AFFECTED: THM 125C, 200C, 200-4R, 325-4L TRANSMISSIONS WHEN USED WITH DIESEL ENGINES
Beginning with 1984 models, new torque converters went into production which have the blades retained into the converter pump shell by a braze process. Blades which have moved in a converter may reduce torque multiplication causing a loss of power effect under 35 mph.
When servicing any 1981 through 1984 THM 125C, 200C, 2004R, 3254L and torque converter replacement is required, refer to the chart below for replacement part numbers, converter identification and model application.
THM MODEL PART NUMBER NEW IDENT. APPLICATION BY MODEL
THM 125C 8653936 FH5 1982 THRU 1984 OP.
THM 200C 8638926 CE9D 1982 THRU 1984 OR.
THM 200C 8638927 CG9D 1981 AS, HT, OT
1983 THRU 1984 OU.
THM 200-4R 8638926 CE9D 1984 OF.
THM 200-4R 8638927 CG9D 1982 THRU 1984 OM.
1984 OY.
THM 325-4L 8638927 CG9D 1982 THRU 1984 AL & OK.