Vehicle recall 89V079000 · May 15, 1989
Mack MH, R Series and 1 more model
Torque rod bolts are grade 2 instead of grade 5, which is not to specification, and could fail.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Torque rod bolts are grade 2 instead of grade 5, which is not to specification, and could fail.
- Consequence
- Bolt failure could allow the rear axle to shift; thiscould adversely affect truck control and could result in a crash.
- Remedy
- Replace torque rod bolts with bolts of the proper specification.
- Notes
- System: suspension/torque rod fasteners.vehicle description: heavy duty trucks with reyco suspension.
Recall details
- NHTSA campaign
- 89V079000
- Reported to NHTSA
- May 15, 1989
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- August 16, 1989
- Vehicles potentially affected
- 100
- Initiated by
- the manufacturer
- Components
- Suspension › Front
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack MH (1989): 1989
- Mack R Series (1989): 1989
- Mack RW Series (1989): 1989
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.