Cutlass Ciera Cruiser V6-231 3.8L (1985)
Clutch: All Technical Service Bulletins
A/T - Long or Delayed 2-3 Shift
SUBJECT 1984-1987 THM 440-T4 NEW 3RD CLUTCH INNER
NUMBER: 86-T-63B
SEAL REPLACEMENT FOR A LONG AND/OR DELAYED 2-3 SHIFT CONDITION
DATE:
July 23, 1987
MODELS/YEARS 1984 THROUGH EARLY 1987 MODELS WITH
SECTION: 7A
440-T4 TRANSAXLE
This bulletin contains updated Julian Date breakpoints and supersedes 86-T-63A which should be discarded..
FIGURE 1
A long and/or delayed 2-3 shift on a THM 440-T4 transaxle may be caused by a leaking 3rd clutch inner seal (Figure 1, Item 635A). A new, thicker seal
is used in production and available for service replacement. The new seal can be recognized by a small group of hash marks on the inside diameter of the
seal.