Vehicle recall 89V022000 · February 17, 1989
1984-1989 Mack Mack
An incorrect 3/4 inch bolt was installed on rt/rs 450 suspension.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- An incorrect 3/4 inch bolt was installed on rt/rs 450 suspension.
- Consequence
- This bolt may break, causing disengagement of the beam connection of rear suspension, resulting in loss of control, which could result in an accident.
- Remedy
- Retrofit chassis with 1 inch bolts.
- Notes
- System: suspension.vehicle description: heavy duty trucks built with hendrickson rt/rs 450SUSPENSION.
Recall details
- NHTSA campaign
- 89V022000
- Reported to NHTSA
- February 17, 1989
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- August 23, 1989
- Vehicles potentially affected
- 18
- Initiated by
- the manufacturer
- Components
- Suspension › Rear › Springs › Leaf spring assembly › U-bolt, leaf spring to axle
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
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.