Recall 78V171000: Mack trucks, incorporated

Report received

Aug 8, 1978

Manufacturer

Mack trucks, incorporated

Potentially affected

2,100vehicles

Model years

—

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. Stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. This type of failure would cause loss of steering control.

Remedy

Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.