Validate they can balance put together multi-section drivelines with carrier bearings installed
https://wiki-tonic.win/index.php/What_to_Consider_in_Custom_Driveline_Fabrication_for_Heavy-Duty_Trucks:_Repair,_Balancing,_and_Rebuild_Essentials
Confirm they can balance put together multi-section drivelines with carrier bearings installed, simulating real-world operation for smoother results at highway speeds.