Recall 81V-155: 1981 Mack MC Series, 1981 Mack MR Series and 2 more
MACK TRUCKS, INCORPORATED recall for steering, reported to NHTSA on Dec 29, 1981, covering about 225 vehicles.
The problem
The pitman arm retaining bolt may not have been tightened to the required specifications due to a design change. Inadequate retention of the bolt to the output shaft could allow the pitman arm to loosen.
The fix
The dealer will inspect and, if necessary, retorque the retaining bolt to proper specifications at no charge.
Notes
Vehicle description: trucks.system: steering; pitman arm retaining bolts.consequences of defect: should this loose condition go uncorrected, the splinedgrooves on the output shaft could wear smooth, causing loss of steeringcontrol, without prior warning, and a vehicle accident.
Recall details
| Manufacturer | MACK TRUCKS, INCORPORATED |
|---|---|
| Component | Steering › Gear Box › Shaft Pitman |
| Recall started by | the manufacturer |
| NHTSA campaign number | 81V155000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Mack MC Series | 1981 | All years |
| Mack MR Series | 1981 | All years |
| Mack R Series | 1981 | All years |
| Mack RD Series | 1981 | All years |
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 81V-155?
The pitman arm retaining bolt may not have been tightened to the required specifications due to a design change. Inadequate retention of the bolt to the output shaft could allow the pitman arm to loosen.
How is recall 81V-155 fixed?
The dealer will inspect and, if necessary, retorque the retaining bolt to proper specifications at no charge.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.