The Single Axle Rack was designed for those wanting to mount a Dolly Axle on each side of the truck. Each rack will hold a telescoping aluminum axle and break over bar. They are sold as a set, containing (2) Single Axle Racks and (1) thumb screw to hold down the break over bar. With our AUTO-LOX system, your axle easily fits in the mount and locks into place with just a twist. Mounts are pre drilled, lockable and come in our Tuff Coat Black Finish.