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Service bulletin 2008-FA-6

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 id10028324
Published by NHTSA2009-03-25
Manufacturer's number2008-FA-6
Manufacturer's date2009-02-10
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. POTENTIAL CONCERN WITH SHIFT VALVE TRIM SPRINGS IN DOCK SPOTTER AND TRANSIT BUS VOCATIONS. THE 3000 PRODUCT FAMILY, B 300, B 400, B 500 AND T MODELS ARE AFFECTED. MODEL YEARS UNKNOWN. CSC LETTER WAS RECEIVED. *PE

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, Manual transmission

Vehicles listed
ALLISON TRANSMISSION

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