SYS ONLINE INGEST 4 hours ago SOURCE NHTSA · TC BUILD v0.0.29
Vehicle scope Default: all classes — narrow to retail passenger anytime
Network/ Canada/ Kenworth/ 1988138

Kenworth · Canada · High

Kenworth Conventional, C.O.E.: Suspension

Affects Kenworth Conventional, C.O.E. · 1986–1987 — about 48 vehicles.

The hazard

THE REAR SUSPENSION TOP TORQUE RODS ON THE CHALMERS 800 SERIES SUSPENSION WERE MANUFACTURED BY WELDING TWO ANGLED TUBES TOGETHER. THESE WELDS MAY FAIL DUE TO INADEQUATE PENETRATION CAUSING THE TORQUE ROD TO FAIL WITHOUT WARNING AND ALLOWING THE REAR AXLE(S) TO MOVE OUT OF POSITION RESULTING IN VEHICLE INSTABILITY AND LOSS OF CONTROL. CORRECTION: WELDED TOP TORQUE RODS WILL BE REPLACED WITH A NEW ONE PIECE TYPE.

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