The drive axles can be linked to provide more torque when higher traction is needed.
In the former design, the leaf springs clamp d-irectly to the drive axle.
The driver thus sit behind the engine and above the transmission and front drive axle.
The term "mid-engine" has usually been applied to cars having the engine located between the driver and the rear drive axles.
Brookville's locomotives were the first to include planetary drive axles rather than chain drives.
Just as the Be 4/6 this prototype locomotive should have four drive axles.
This would create more space in the passenger cabin and improve the weight balance over the drive axle.
Often lateral motion devices were attached to the leading drive axle.
Improvements to the driveline included larger wheel bearings, and heavier drive axles.
The "program" consisted of strings wrapped around the drive axle.