Drivetrain - Front Differential Alignment Procedure: Overview

No: 54/03/03/NAS
Ref:
*Issue: 2
Date: 20 February 2004*

* asterisks shows updated information *

Front Differential Alignment Process

*NOTE:
The alignment process has been enhanced since the initial bulletin. Virtually all aspects of the bulletin have been revised. Please read the entire process to familiarize yourself with the new conditions.

Because of the substantial changes throughout the procedure no additional "change shading" will occur in this bulletin.*

AFFECTED VEHICLE RANGE:

New Range Rover (LM) All

SITUATION:

ALIGNMENT FOR DIFFERENTIAL INSTALLATION REQUIRED

The required procedure for differential alignment during installation is not thoroughly covered in the RAVE Workshop Manual.

RESOLUTION:

FOLLOW DIFFERENTIAL ALIGNMENT PROCESS

For component longevity it is important that the differential and the transfer box front output flange are correctly aligned. A process and a special measurement tool have been developed to ensure proper alignment of the transfer gearbox front output flange, propeller shaft and the front differential whenever work has been conducted on these components.

CAUTION:
Any damage or wear to the differential drive tube splines, requires that the whole differential assembly be replaced as well as the prop shaft. The differential assembly includes a collapsible spacer that determines the bearing preload. There is currently no acceptable procedure for renewing a drive tube in service. If an attempt is made to change the drive tube only, rapid failure of the differential bearings will occur. Damaged or worn splines in the drive tube will have affected the propeller shaft also, requiring replacement.





PARTS INFORMATION:

TOOLS

LRT54032K Propeller shaft alignment tool Refer to Service Bulletin STE03-20





WARRANTY CLAIMS:





DDW WARRANTY CLAIMS: