The u-joint bearing strap bolts were not properly tightened during assembly.
Transmission & drivetrain
Mack CH Transmission problems by year
3 complaints filed with NHTSA about the Mack CH's transmission & drivetrain. Harsh or delayed shifting, slipping, CVT shudder, rollaway, axles, driveshafts and transfer cases.
Transmission complaints by model year
Transmission recalls
The driveshaft center bearing support bracket can crack and break.
Latest CH transmission complaints
2002 Mack truck ch series axle broke forcing the truck to strike the median wall. *Nj (ohio traffic crash report # 101-0517-91) *jb letter updated 03/17/10*bf
1996 Mack ch series' drive shaft fell on the roadway while driving. *Ts *jb *nm
Clutch will not disengage. This caused truck to came in motion and not stop. Please describe details. Tt
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