NHTSA Campaign Id 84V036000; Date: Mar. 23, 1984
Recalled Vehicles:1978 Mack CF; 1979 Mack CF; 1980 Mack CF; 1981 Mack CF; 1982 Mack CF; 1978 Mack F Series; 1979 Mack F Series; 1980 Mack F Series; 1981 Mack F Series; 1982 Mack F Series; 1978 Mack Fm Series; 1979 Mack Fm Series; 1980 Mack Fm Series; 1981 Mack Fm Series; 1982 Mack Fm Series; 1978 Mack Mb Series; 1979 Mack Mb Series; 1980 Mack Mb Series; 1981 Mack Mb Series; 1982 Mack Mb Series; 1978 Mack Mc Series; 1979 Mack Mc Series; 1980 Mack Mc Series; 1981 Mack Mc Series; 1982 Mack Mc Series; 1978 Mack Mr Series; 1979 Mack Mr Series; 1980 Mack Mr Series; 1981 Mack Mr Series; 1982 Mack Mr Series; 1978 Mack R Series; 1979 Mack R Series; 1980 Mack R Series; 1981 Mack R Series; 1982 Mack R Series; 1978 Western Rl Series; 1979 Western Rl Series; 1980 Western Rl Series; 1981 Western Rl Series; 1982 Western Rl Series; 1978 Western Rs Series; 1979 Western Rs Series; 1980 Western Rs Series; 1981 Western Rs Series; 1982 Western Rs Series; 1978 Western Rwl Series; 1979 Western Rwl Series; 1980 Western Rwl Series; 1981 Western Rwl Series; 1982 Western Rwl Series; 1978 Western Rws Series; 1979 Western Rws Series; 1980 Western Rws Series; 1981 Western Rws Series; 1982 Western Rws Series; 1978 Western Wl Series; 1979 Western Wl Series; 1980 Western Wl Series; 1981 Western Wl Series; 1982 Western Wl Series; 1978 Western Ws Series; 1979 Western Ws Series; 1980 Western Ws Series; 1981 Western Ws Series; 1982 Western Ws Series
Component: Suspension:rear:springs:leaf Spring Assembly
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 3,421
Recall 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.
How to Fix:The axle housing will be inspected and replaced, if necessary. The spring seats will also be replaced.
Recall 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.
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