WenmarOpen by Wenmar Pro

Service bulletin PI-0767

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 id10051569
Published by NHTSA2013-03-19
Manufacturer's numberPI-0767
Manufacturer's date2014-04-01
ReplacesPI-0767-C
NHTSA componentSUSPENSION:FRONT:CONTROL ARM

NHTSA's summary

MACK TRUCKS: SLACK ADJUSTER CONTROL ARM. HALDEX SLACK ADJUSTERS AND RIDEWELL SUSPENSION MAY EXHIBIT A CONDITION WHICH ALLOWS THE SLACK ADJUSTER CONTROL ARM TO MAKE CONTACT WITH THE RIDEWELL SUSPENSION WALKING BEAM DURING STEEP SUSPENSION ARTICULATION. *JS UPDATED 06/28/13. *PE UPDATED 12/19/13. *PE UPDATED 08/09/2014 *JS

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, Control arm

Vehicles listed
MACK GRANITE (GU)2012 to 2013
MACK GU2006 to 2011

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