Drivetrain - Rear Differential Whine

39 08 06

2014569/2

December 16, 2008.

Supersedes Technical Service Bulletin Group 39 number 07-01 dated March 19, 2007 for reasons listed below.





Affected Vehicles

39 Whining noise from rear differential

Condition





Rear differential makes a whining noise during deceleration at highway speeds.

This condition does not affect vehicle performance or driveability.

Technical Background

Bearing and bearing carrier may wear after 20,000 miles and cause a whining noise.

Production Solution

New final drive (0AR), gradually introduced in production. (The 01R rear differential has a black housing; the 0AR is unpainted and thus appears silver.)

Service

Install the new 0AR final drive. (See table below.)





See ETKA for all other applications.





Warranty

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.