“We don’t know why more fleets, big and small, are not buying 6x2s. Our investigation shows that the benefits are clear.”
The chassis system is defined as all of the parts in the tractor that carry the cab, hood, and powertrain. This includes frame rails, cross-members, axles, fuel tanks, battery boxes, etc. Although generally not an area for significant fuel efficiency options, new technologies are emerging. One example is the expected increased adoption of 6x2 axles.