Vehicle recall 89V033000 · March 3, 1989
Mack DM Series, DMM Series and 3 more models
Dowels may have been omitted during spring cap installation; this would put shear load on the four (4) spring cap bolts.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Dowels may have been omitted during spring cap installation; this would put shear load on the four (4) spring cap bolts.
- Consequence
- This could result in loosening and failure of the boltswith possible loss of control and accident potential.
- Remedy
- Install the missing dowels to prevent movement between the spring cap and axle housing.
- Notes
- System: spring cap to axle housing connection dowel.vehicle description: heavy duty trucks.
Recall details
- NHTSA campaign
- 89V033000
- Reported to NHTSA
- March 3, 1989
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- July 31, 1989
- Vehicles potentially affected
- 152
- Initiated by
- the manufacturer
- Components
- Suspension › Rear › Springs
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack DM Series (1988): 1988
- Mack DMM Series (1988): 1988
- Mack MH (1988): 1988
- Mack RD Series (1988): 1988
- Mack RW Series (1988): 1988
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.