Verify they can balance assembled multi-section drivelines with provider bearings installed
https://wiki-burner.win/index.php/Drivelines_Done_Right:_Key_Factors_When_Picking_Custom_Fabrication,_Repair,_and_Balance_Solutions_for_Fleet_Trucks
Confirm they can balance put together multi-section drivelines with provider bearings set up, replicating real-world operation for smoother outcomes at highway speeds.