Broken Driveshaft

All depends on how it broke. Got any pictures??

 

YES, we've had drivers fired for breaking a driveshaft due to driver abuse, after a truck was towed and the drive shaft was unhooked and later rehooked,
#Crete

 

Not always. Did the driveshaft itself break, or was it just a u-joint? I've dropped a driveshaft before because a bolt sheared off on a u-joint.

 

Some drive shafts WILL fail at a certain torque point. I recall one shaft rated to fail at 1350 pounds torque which is easily generated when sliding tandems at scale house. I hated sliding for that reason.

Engines can and will put out upwards of 2000 pounds if not much more depending on how much drives you are running back there. If I ever buy a tractor again, it's going to have a monster shaft under there capable of taking whatever the engine produces. I rather fix ubolts and such rather than the whole #### shaft.

You can literally be shafted trying to economize with parts designed to fail by the factory LOL..

 

It could be a number of factors. If the engine was just rebuilt then the drive shaft itself could have been ready to go too. A newly rebuilt engine could be putting out more torque than it was pre-rebuild and that energy would travel to the next weakest component. How many times had someone rebuilt a car engine without doing the tranny and had that tranny go shortly after?

 

Driveshafts are seeing a *LOT* more than 2000 ft lbs of torque. Try 15,000+