1980 MACK MACK Recalls (3)
- Campaign:
- 86V009000 on 01/27/1986
- Component:
- Suspension:rear:springs:leaf spring assembly
- Manufactured:
- 12/31/1977 - 08/31/1985
- Affected:
- 11,000
- Defect:
- The spring eye bolt was not torqued properly and could fail due to the loose fit within the spring eye bushing/hanger bracket. consequence of defect: the spring could fall onto the road surface, without warning to the driver, and a vehicle crash could occur due to the sudden drag of the spring.
- Correction:
- Not available at this time. in the interim the torque of the spring eye bolt will be checked.
- Notes:
- System: spring eye bolt.vehicle description: heavy duty trucks with st34 or st38 series rear axle.
- Campaign:
- 87V010000 on 02/12/1987
- Component:
- Suspension:rear:springs:air suspension system
- Manufactured:
- 10/31/1971 - 01/31/1987
- Affected:
- 5,235
- Defect:
- Crossmember can be overstressed and can fail, allowing the broken crossmember to protude above the top of the frame and interfere with chassis components.
- Consequence:
- Trailer handling could be affected during turningmaneuvers which could result in loss of truck control and a crash. also, acompletely separated crossmember could affect height of suspension air springsand the resulting lean could result in loss of control.
- Correction:
- Installation of a bolted double plate type crossmember to replace the standard channel type crossmember.
- Notes:
- System: rear crossmember with neway air suspension.vehicle description: heavy duty trucks:dm,f,fm,mc,mce,mh,mr,r,rd,rs,rl,rw,rwl,rws and u models equipped with neway airride drive axle suspension.
- Campaign:
- 90V010000 on 02/05/1990
- Component:
- Suspension:rear:springs:leaf spring assembly
- Manufactured:
- 12/31/1977 - 11/30/1987
- Affected:
- 14,800
- Defect:
- The 7/8 inch spring eye bolts within the spring eye bushing hanger bracket of the rear suspension may fail.
- Consequence:
- The spring could fall onto the road surface, without warning to the driver, and a vehicle crash could occur due to the sudden drag of the spring.
- Correction:
- Replace all 7/8 inch diameter spring eye bolts with 1 inch diameter bolts.
- Notes:
- System: suspension; spring eye bolt.vehicle description: heavy duty trucks with st34 or st 38 rear suspension.
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