What NHTSA investigated
The companies involved in this matter are: skf (hub mfr), arvinmeritor (front axle mfr), and mack (manufacturer of class viiitractor/trucks).skf identified manufacturing defects for specific build dates on front axle hub and bearings (wheel bearings) supplied to arvinmeritor.as a result, arvinmeritor notified mack of axles supplied with possible defective front hub assemblies.as a result of that notification, 998 trucks are being recalled by mack for defective front axle wheel bearings which may fail in such a way that a wheel separation or wheel bearing fire occurs.see attached summary report for additional details.
The recall that followed
Vehicles covered
| Make | Model | Model years |
|---|---|---|
| Mack | CH | 1998–2001 |
| Mack | CX | 1998–2001 |
Source
From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.