In the quest for greater fuel economy, engineers have been squeezing excess weight out of every part of the vehicle. but an item that has mostly escaped their focus, is the heavy drive axle in pickups and large SUVs. In this episode of SAE Eye on Engineering, Editor-In-Chief Lindsay Brooke looks at American Axle's new Quantum axle. SAE Eye on Engineering also airs Monday mornings on WJR 760 AM Detroit's Paul W. Smith Show. Access archived episodes of SAE Eye on Engineering.