Watson and Chalin introduced the Tru-Track 13K and 20K steerable lift axles at Freightliner and Western Star. The axles are available through a direct ship program.
W&C Suspension Has Adjustable Ride Height
The Watson & Chalin SL13K-1190 is an integrated suspension and axle assembly that features air disc brakes and a quick change ride height system. It is made for dump, mixer, refuse and heavy haul applications.