Tracker 4WD L4-2.0L VIN C (1999)
Synchronizer Ring: All Technical Service Bulletins
Transfer Case - High Shift Effort
File In Section: 04 - Driveline Axle
Bulletin No.: 00-04-21-002
Date: December, 2000
TECHNICAL
Subject:
High Transfer Case Shift Effort (Replace Synchronizer Hub/Sleeve Assembly, Synchronizer Blocking Ring and Shift Shaft)
Models:
1999-2000 Chevrolet Tracker with 4-Wheel Drive
Condition
Some customers may comment on a high transfer case shift effort when shifting from 2H to 4H with the vehicle in motion.
Cause
This condition may be caused by high friction and engagement load within the synchronizer.
Correction
Replace the synchronizer hub/sleeve assembly, synchronizer blocking ring and front drive shift shaft. Use the following service procedure and part
numbers listed below.
Important:
Improvements have been made to the above components which should reduce shift effort. The synchronizer inserts and spring have been eliminated
to reduce friction.
Service Procedure
1.
Remove the transfer case assembly from the vehicle.
Refer to the Transfer Case sub-section of the Service Manual.
2.
Remove the synchronizer hub/sleeve assembly, synchronizer blocking ring and front drive shift shaft.
Refer to the Transfer Case - Tracker sub-section of Driveline/Axle in the Unit Repair Manual. Perform steps 1-17, 31-34, 41, 46 and 52.
3.
Install the new synchronizer hub/sleeve assembly, synchronizer blocking ring and front drive shift shaft.
Refer to the Transfer Case - Tracker sub-section of Driveline/Axle in the Unit Repair Manual. Perform steps 1, 2, 7, 14, 24-31 and 40-70.
4.
Install the transfer case assembly into the vehicle. Refer to the Transfer Case sub-section of the Service Manual.
