Cutlass Ciera Cruiser L4-151 2.5L (1985)
SERVICE ACTION:
Packages listed under "Service Parts Information" are available to update past models (pre-1989) with the new Thrust Bearing and associated
components and to service early 1989 models. NOTE: The Input Shaft/Sun Thrust Washer and Lock Up Sleeve will NO longer be available for service
from GMSPO for 1987 through 1989 models, replace worn components for these model years with the new Thrust Bearing and associated components.
For 1986 and prior model years, use the new Input Housing and Shaft Assembly package for distressed 3rd Roller Clutch and/or Input Thrust Washer
concerns, otherwise replace with previous parts that will still be available from GMSPO.
For a distressed 3rd Clutch Assembly, locate and correct the cause of the concern. This could be leaking Input Shaft Oil Seal Ring(s) (624) or a
dislodged Shaft/3rd Clutch Spring Return Snap Ring (639) causing a dragging 3rd clutch pack. Replace the Snap Ring with a new one if it was found to
be dislodged.
Also, inspect the Input Clutch Sprag Assembly (653) and Input Sprag Outer Race (654) for damage. This damage could be caused by the customer
putting the transaxle in Drive 2 (D2) after a 3rd Roller Clutch Assembly (644) failure (no 3rd gear) so the car will travel at highway speeds causing
excessive overrun speeds for the Sprag.
IMPORTANT:
Perform the Input Housing End Play Measurement when installing the new parts to assure proper end play.
Figure 1 - THM 440-T4
