Steering wheel retaining nuts may have been improperly installed and/or torqued.
1983-1989 · 5 model years
Mack DM Series Problems by year
Owners have filed 0 complaints about the Mack DM Series across 5 model years, and it has 9 recalls.
- Complaints
- 0
- Recalls
- 9
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
DM 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 DM Series recalls 9
Dowels may have been omitted during spring cap installation; this would put shear load on the four (4) spring cap bolts.
An incorrect high pressure power steering hose may have been installed.
The undersized weld on the rear suspension bracketry attachment can cause bracket failure.
Fasteners that hold the rear wheel to the hub and drum assembly may be improperly torqued.
Some of the nuts/bolts used to fasten the steering pitman arm may loosen.
Clamp plates used between the drive shaft and carrier yokes may crack and could break due to improper heat treatment.
Cross steering levers may be improperly heat treated and subject to fail during normal operation.
Improper steering clamp bolts and torque applied during installation. The bolt could fail, allowing the steering yoke to become loose.
Questions about the Mack DM Series
How many recalls does the Mack DM Series have?
NHTSA lists 9 recalls across all Mack DM 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