Stealth ES V6-2972cc 3.0L DOHC (1991)
Synchronizer Hub: All Technical Service Bulletins
M/T - Synchronizer Modifications
NO.:
21-06-92
GROUP:
Transmission
DATE:
Mar. 23, 1992
SUBJECT:
Hard Shifting/Gear Clash During Shifting
NOTE:
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 21-14-91 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL
REVISIONS ARE HIGHLIGHTED IN RED AND **ASTERISKS**.
MODELS:
1991 (BD) Laser
(B2) Colt
(B3) Colt Vista
(B7) Stealth
DISCUSSION:
Effective November 11, 1990, modifications were made to the 1-2 synchronizer hub and sleeve, the 1-2 synchronizer spring, and the 3-4 synchronizer
spring for 1991 vehicles equipped with manual transaxles, to prevent hard shifting/gear clash during shifting. These parts are now available for vehicles
built prior to November 11, 1990. These improvements will not compensate for incomplete disengagement of the clutch (not pushing the clutch pedal all
the way to the floor).
The 1-2 synchronizer sleeve, 1-2 spring, and the 3-4 spring have been modified: the inner groove of the sleeve was made narrower, and the inner
diameter of both springs were reduced, see Figure 1.
NOTE:
THE 1-2 SYNCHRONIZER SLEEVE, HUB, AND **SPRINGS** MUST BE INSTALLED AS AN ASSEMBLY. REPLACEMENT OF THE 3-4
SYNCHRONIZER **SPRINGS** MAY BE REPLACED WITHOUT REPLACING THE SLEEVE AND HUB.
