Mack · Canada · High
Mack WS, WL: Not Entered
Affects Mack WS, WL · 1975–1976 — about 19 vehicles.
The hazard
VEHICLES EQUIPPED WITH ROCKWELL INTERNATIONAL FF931C FRONT AXLES AND S-=CAM BRAKES. THE BRAKE SPIDER MAY FAIL ALLOWING SEPARATION OF THAT PORTION THAT RETAINS THE BRAKE CAMSHAFT, BRAKE CHAMBER AND THE BRAKE CHAMBER BRACKET FROM THE FOUNDATION BRAKE ASSEMBLY. FAILURE CAN OCCUR WITHOUT WARNING AND LEAD TO BRAKE PULL OR WHEEL LOCKUP.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational