Steering wheel retaining nuts may have been improperly installed and/or torqued.
1977-1989 · 11 model years
Mack RD Series Problems by year
Owners have filed 1 complaints about the Mack RD Series across 11 model years, and it has 15 recalls. The 1978 has the most complaints once its age is allowed for (1). The most reported problem area is the brakes.
- Complaints
- 1
- Recalls
- 15
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
RD 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.
Most common RD Series problems
Mack RD Series recalls 15
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.
There may be insufficient weld where the step is welded to the fuel tank.
Certain engine support castings were produced with faulty metallurgy and could fail.
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.
Compression of front springs could interfere with the 90 degree crossover fittings on the bottom of the gears.
Covers1988 Mack RD Series
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.
The accelerator rod hole clearance is not adequate and can cause the accelerator linkage to bind. Consequence of defect: if binding...
Latest RD Series complaints
Anti lock brakes failed, recall not known, purchased after recall notices.
Questions about the Mack RD Series
Which Mack RD Series years have the most problems?
By the number of complaints owners filed with NHTSA: 1978 (1). Allowing for how long each has been on the road, the 1978 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.
Which Mack RD Series years have the fewest complaints?
What are the most common Mack RD Series problems?
Across every model year, owners report problems with the brakes (1) most often.
How many recalls does the Mack RD Series have?
NHTSA lists 15 recalls across all Mack RD 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