Mounting of the pitman arm may loosen and lead to excessive wear in either the pitman arm splines or the steering gear shaft splines, or both. This condition is due to incorrect tightening of the mounting screws during assembly.
Steering
Mack FWS Steering problems by year
0 complaints filed with NHTSA about the Mack FWS's steering. Loss of power steering, stiff or loose steering, wandering, column and rack problems.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data