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Service bulletin 6581

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 id610699
Published by NHTSA2000-05-11
Manufacturer's number6581
Manufacturer's date1999-07-01
NHTSA componentSUSPENSION:REAR

NHTSA's summary

SOME VEHICLES EQUIPPED WITH EITHER DANA 80 OR S135 AXLE MAY EXHIBIT FLUID LEAKAGE FROM THE AXLE VENT TUBE DUE TO FLUID OVERFILL. *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

Suspension

Vehicles listed
FORD ECONOLINE1999
FORD SUPER DUTY F SERIES1999

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