Kerr Trailers now offers it's ST series with sliding axles with a Tag-along towing attachment. Soon after the design, testing and commercialization of the gooseneck and fifthweel version of the slide- trax trailer, Kerr Trailers has successfully designed this unit with a conventional or tag-along attachment. Ideal for larger six wheel trucks that can take the extra tongue weight. This design works well when the truck has a gravel box, flat deck or other configuration that does not permit using a fifthweel type hitch.