On some peterbilt trucks, certain parts used in the air suspensions have a high copper content causing premature failure.
Suspension
Peterbilt 378 Suspension problems by year
0 complaints filed with NHTSA about the Peterbilt 378's suspension. Broken springs, struts, control arms, ball joints, noises and alignment that won't hold.
Suspension complaints by model year
Suspension recalls
On certain heavy duty class 8 trucks, the suspension has transverse beam castings that may fracture under normal loads. If a casting breaks when the vehicle is traveling on a roadway there is the potential for pieces of the casting to become projectiles and...
On certain trucks equipped with truck hub units manufactured by skf exclusively for use on arvinmeritor's ff98x series non-drive steer axles, the hub unit bearings can wear prematurely.
Vehicle description: heavy duty trucks equipped with chalmers 1000 series and 800 series suspension kits. These suspension kits may have insufficient penetration of the weld attaching the torque rod eye to the torque rod tube.
Vehicle description: heavy duty trucks equipped with design level 1, rockwell ff980 series front axle. The front axle hub flange can develop cracks due to high stress levels.
Latest 378 suspension complaints
No complaints in this area yet.
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