Kenworth offers the Watson & Chalin Tru-Track Super Lite steerable lift axle as an option to cut weight and boost payload.
The Super Lite lift axle can function as a tag or pusher axle. Provided for Kenworth T800 and W900 models, it is offered in single, double, or triple configurations. The axle is equipped with lightweight brakes and specialized hubs and comes with 17.5" tires and aluminum wheels.
With a gross axle capacity of 8,000 pounds, the axle assembly weighs 895 pounds with wheels and tires. That is 374 pounds less than Watson & Chalin's conventional 13,200-pound Tru-Track assembly, or a savings of more than 1,100 pounds on a truck equipped with three lift axles.