Fulltext TSBs

Technical Service Bulletins

TSB
98-11-10
  • AXLE – FLUID LEAKS FROM REAR AXLE VENT TUBE – F-350, F-450 DRW VEHICLES BUILT THROUGH 3/2/98 AND F-450 MOTORHOME CHASSIS BUILT THROUGH 3/25/98 – VEHICLES EQUIPPED WITH 6.8L OR 7.3L ENGINE AND DANA MODEL 80 REAR AXLES
Publication Date: JUNE 8, 1998

LIGHT TRUCK:
1999 SUPER DUTY F SERIES

ISSUE:

Fluid may leak out the rear axle vent tube on some vehicles. This may be due to an out-of-position oil drainback slot in the axle carrier housing which allows foam to build up in the vent fitting area.

ACTION:

Install an Oil Baffle Kit. The Oil Baffle Kit allows axle lube to drain into carrier sump rather than build up lube foam in the vent area to reduce the possibility of a fluid leak. Refer to the Instruction Sheet in the kit which includes an illustration for details.

The Oil Baffle Kit (F81Z-4631-AA) includes the following:

  • One (1) Baffle
  • One (1) Washer
  • One (1) Instruction Sheet

PART NUMBERPART NAME
F81Z-4631-AAOil Baffle Kit
F1TZ-19580-BHigh Performance Rear Axle Lubricant
C8AZ-19B546-AFriction Modifier Oil Additive

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
981110AInstall Oil Baffle Kit1.1 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
402243

OASIS CODES:

509000, 510000