TSB ASI-44352 — Ford Service bulletin

ASI-44352 is a service bulletin on file with NHTSA for the Ford Mustang, 2007–2009 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. FORD: DUE TO VEHICLES, WITH CARBON FIBER CLUTCHES, A CHATTER OR MOAN/GROAN NOISE IS HEARD WHILE MAKING SHARP TURNS, AT LOW SPEED AND IS CHARACTERISTIC OF HEAVY DUTY/RACING TYPE LIMITED SLIP DIFFERENTIAL. MODEL 2007-2014 MUSTANG GT500, GT, BULLITT.

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
1Vehicle named
3Model years

Vehicles and model years ASI-44352 names

VehicleModel years
Ford Mustang 2007, 2008, 2009

Every document filed under ASI-44352

Document IDFiledType
ASI-44352 January 1, 2014 Service bulletin

What ASI-44352 covers

Transmission & drivetrain — the component vocabulary NHTSA files this communication under.

← All Ford Mustang TSB years TSB lookup by model

Questions buyers ask

What is TSB ASI-44352?

ASI-44352 is a service bulletin filed with NHTSA by Ford, covering the Ford Mustang across the 2007–2009 model years. NHTSA's summary reads: FORD: DUE TO VEHICLES, WITH CARBON FIBER CLUTCHES, A CHATTER OR MOAN/GROAN NOISE IS HEARD WHILE MAKING SHARP TURNS, AT LOW SPEED AND IS CHARACTERISTIC OF HEAVY DUTY/RACING TYPE LIMITED SLIP DIFFERENTIAL. MODEL 2007-2014 MUSTANG GT500, GT, BULLITT.

Which vehicles does ASI-44352 cover?

NHTSA's file names Ford Mustang (2007–2009). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB ASI-44352 a recall, and is the repair free?

No. ASI-44352 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of ASI-44352?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under ASI-44352, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under ASI-44352. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.