Vehicle recall 84V036000 · March 23, 1984
Mack CF, Mack F Series and 11 more models
Spring seat can deform, which causes a decrease in the clamping force in the suspension assembly.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- Remedy
- The axle housing will be inspected and replaced, if necessary. The spring seats will also be replaced.
- Notes
- Vehicle description: heavy trucks.system: suspension; rear spring seat.consequences of defect: loss of vehicle control could occur without warning,possibly resulting in an accident.
Recall details
- NHTSA campaign
- 84V036000
- Reported to NHTSA
- March 23, 1984
- Filed by
- MACK TRUCKS, INCORPORATED
- Vehicles potentially affected
- 3,421
- Initiated by
- NHTSA’s Office of Defects Investigation
- Components
- Suspension › Rear › Springs › Leaf spring assembly
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack CF (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack F Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack FM Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack MB Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack MC Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack MR Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Mack R Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western RL Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western RS Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western RWL Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western RWS Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western WL Series (1978-1982): 1982, 1981, 1980, 1979, 1978
- Western WS Series (1978-1982): 1982, 1981, 1980, 1979, 1978
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.