Service bulletin FSB 722-004
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10083519 |
| Published by NHTSA | 2016-10-25 |
| Manufacturer's number | FSB 722-004 |
| Manufacturer's date | 2015-10-30 |
| NHTSA component | SUSPENSION |
NHTSA's summary
TWIN Y SUSPENSION, TRAILING BLADE, REPLACEMENT. SOME MACK CHU AND CXU TRUCKS BUILT 06/13/2013 THROUGH 09/25/2015 AND EQUIPPED WITH TWIN-Y SUSPENSION MAY REQUIRE REPLACEMENT OF THE TWIN-Y TRAILING BLADES WITH A MORE ROBUST DESIGN. THE NEW TWIN-Y TRAILING BLADES HAVE A NEW PROFILE WITH A STRONGER MATERIAL THICKNESS OF 7.0 MM (0.28 IN). ALL FOUR TRAILING BLADES WILL REQUIRE REPLACEMENT IN THIS REPAIR PROCEDURE.
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
| MACK CHU | 2014 to 2016 |
|---|---|
| MACK CXU | 2014 to 2016 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.