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Service bulletin 4628

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id615164
Published by NHTSA2001-01-02
Manufacturer's number4628
Manufacturer's date1998-08-01
NHTSA componentPOWER TRAIN:AXLE ASSEMBLY

NHTSA's summary

SOME VEHICLES MAY EXHIBIT REAR AXLE NOISE. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Axle

Vehicles listed
FORD E-1501997, 1998
FORD EXPEDITION1997, 1998
FORD F-1501997, 1998
FORD F-2501997, 1998
LINCOLN NAVIGATOR1997
LINCOLN NAVIGATOR1998

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
056182005-12-07. Service bulletin. REAR AXLE NOISE REPAIR. *TT
184662005-05-05. Service bulletin. AXLE WHINE HOWL. THIS INCLUDES 1997-05 FORD VEHICLES. *EH
01932001-07-19. Service bulletin. A CONDITION MAY EXIST WHERE A DRIVELINE VIBRATION AND / OR A TRANSMISSION FLUID LEAK FROM THE EXTENSION HOUSING SEAL AREA MAY OCCUR ON SOME VEHICLES. THIS MAY BE CAUSED BY THE EXTENSION HOUSING BUSHING OR SEAL WALKING / SPINNING OUT DUE TO EXCESS DRIVESHAFT FLEXING DURING EXTENDED HIGH SPEED OPERATION. *TT
127972001-01-05. Service bulletin. ADDRESSING CONCERNS OF A LOW SPEED (UNDER 35 MPH) CLICKING NOISE CAUSED BY A CAGE NUT ROCKING ON THE COTTER PIN FOR THE FRONT AXLE HALF SHAFT SPINDLE. *TT
985A272000-12-13. Service bulletin. LUBRICANT LEAKING FROM REAR AXLE SEAL CONTAMINATING BRAKE SHOES. *YC
127252000-11-09. Service bulletin. SOME VEHICLES MAY EXHIBIT A VIBRATION AND / OR TRANSMISSION EXTENSION HOUSING BUSHING DAMAGE FROM SUSTAINED HIGH SPEED OPERATION. *TT
62422000-11-03. Service bulletin. EXPERIENCING A VIBRATION AND / OR TRANSMISSION EXTENSION HOUSING BUSHING DAMAGE. *TT
992412000-03-09. Service bulletin. ON 4X2 VEHICLES WITH 4R70W AND 139 INCH WHEELBASE, A VIBRATION FROM TRANSMISSION AND / OR A TRANSMISSION FLUID LEAK FROM THE EXTENSION HOUSING SEAL MAY OCCUR. *TT
99131251999-12-07. Service bulletin. SONE POLICE VEHICLES AND OTHER VEHICLES WITH 4R70W MAY EXHIBIT A VIBRATION AND / OR TRANSMISSION EXTENSION HOUSING BUSHING DAMAGE FROM SUSTAINED HIGH SPEED OPERATION. *TT
9830741999-09-21. Service bulletin. CONCERNS WITH AXLE WIND-UP AND / OR CLUNKING, POPPING, RATCHETING TYPE NOISES WHEN MAKING CORNERING MANEUVERS. *TT