The undersized weld on the rear suspension bracketry attachment can cause bracket failure.
1978-1987 · 6 model years
Mack MR Series Problems by year
Owners have filed 0 complaints about the Mack MR Series across 6 model years, and it has 5 recalls.
- Complaints
- 0
- Recalls
- 5
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
MR Series complaints by model year
Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.
Mack MR Series recalls 5
Fasteners that hold the rear wheel to the hub and drum assembly may be improperly torqued.
Cross steering levers may be improperly heat treated and subject to fail during normal operation.
Spring seat can deform, which causes a decrease in the clamping force in the suspension assembly. Loss of clamping force may bring about axle misalignment or axle housing failure.
The pitman arm retaining bolt may not have been tightened to the required specifications due to a design change. Inadequate retention of the bolt to the output shaft could allow the pitman arm to loosen.
Questions about the Mack MR Series
How many recalls does the Mack MR Series have?
NHTSA lists 5 recalls across all Mack MR Series model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data