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TSB 03-004-02

Front Axle Disconnect System

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Date: February 11, 2002

Models: 2002 (BR/BE) Ram Truck 2500, 3500

NOTE: THIS BULLETIN APPLIES TO 2500 AND 3500 (BE/BR) RAM TRUCKS BUILT AFTER JANUARY 4, 2002 AND EQUIPPED WITH FRONT AXLES WITH THE FOLLOWING PART NUMBERS: 52070136AO, 52070137AO, 52070138AP, AMD 52070139AO.

Overview:
This bulletin involves a mid-2002 model year deletion of the front axle disconnect system on 2002 (BE/BR) 2500 and 3500 Ram Trucks. This change effects the front axle, transfer case and engine/headlamp 2nd dash wiring harnesses.

Discussion:

1.    The vehicles Involved still retain Shift On the Fly (SFO) capability, however with this change, the front driveshaft will now turn continuously when the vehicle is being driven.

2.    When the vehicle is stopped In 2WD, the front driveshaft will no longer spin freely.

3.    The 4WD Indicator light on the instrument panel is now controlled by a switch on the transfer case.

4.    If there is a mechanical problem causing loss of 4WD the indicator light will be "ON" if the shifter is in the 4WD "HI" or "LO" position.

5.    If the indicator light is not functioning properly when the transfer case shifter is in the 4WD position, the transfer case switch, dashboard indicator light or circuit should be diagnosed first.

6.    Parts required for service on vehicles with this change are readily available already identified in the Mopar Parts Catalog.

NOTE:. DUE TO THE TIMING OF THIS CHANGE THIS INFORMATION IS NOT REFLECTED IN THE SERVICE MANUAL (PUBLICATION # V 81-370-02057).

NOTE: DIAGNOSTIC AND SERVICE PROCEDURES FOR THE FRONT AXLE DISCONNECT SYSTEM, RELATED VACUUM LINES, THE TRANSFER CASE SYNCHRONIZER ASSEMBLY, MAIN SHAFT ASSEMBLY, HUB, STRUTS, RETAINING RING, SLIDING CLUTCH AND SPRING SHOULD BE DISREGARDED. SERVICE INFORMATION TO SUPPORT THIS CHANGE IS CURRENTLY BEING DEVELOPED AND WILL BE ON A FUTURE MDS2 CD RELEASE WHEN DEVELOPMENT IS COMPLETED.

Policy:    Information Only

This page was edited on: May 3, 2004