A tire-chain hanger system includes a bracket, at least one track-support member, at least one chain-support member and a roller assembly including at least two support-brackets and at least one bearing. The A tire-chain hanger system is useful for providing a sliding tire-chain hanger system for improved tire-chain removal and installation.

The retractable mud flap system comprises two tracks, a chute, and a flap carrier. The invention is used to retract and extend a mud flap on a truck and is commonly used in pairs of two so that a mud flap on each side of the truck may be retracted. The retractable mud flap system attaches to the underside of a truck's dump bed or to extensions of the truck frame above the rear wheel. The flap carrier comprises two roller assemblies and a flap clip. A mud flap is coupled to the flap clip and passes through the chute. The roller assemblies move on the tracks with the flap clip mounted between them. A control located within the cab activates a motor on one roller assembly, moving the roller assemblies and the mud flap. A remote control embodiment is also described.

A mud flap system provides a quick and convenient way to install and reinstall mud flaps. It includes a mud flap with a wedged top that slides into a lockable mud flap mount. It pulls away from the mount if hit with enough force before the mount bends or breaks. This eliminates the need for tools and complicated instructions to replace damaged mud flaps.

A converter dolly is provided for use with a tractor-trailer wherein the converter dolly additionally comprises dolly fairings which are located in front of the wheels of the converter dolly. The dolly fairings are preferably made of fibreglass, and improve the aerodynamic efficiency of the converter dolly, and thus reduce fuel consumption.

A fairing assembly for a commercial vehicle is disclosed. The fairing assembly includes a fairing and a mounting system for mounting the fairing on a frame of the commercial vehicle. The mounting system includes a first mounting bracket assembly mounted on the fairing and a second mounting bracket assembly configured to be mounted on the frame. The mounting system is configured to hold the fairing in a covering position for laterally covering at least a major portion of a wheel of the commercial vehicle and allow the fairing and the first mounting bracket assembly to pivot from the covering position into an intermediate position and translationally move along the second mounting bracket assembly in a transverse direction of the commercial vehicle from the intermediate position into a stowed position in which the fairing rests on the second mounting bracket assembly via the first mounting bracket assembly.

In some embodiments, a tire tread collection device is provided which may be coupled to any vehicle preferably having one or more tires. The device may include one or more vertical supports which may be coupled to a debris screen. The debris screen may have a first end, with a collection aperture, and a second end. The first end and collection aperture may be positioned behind and proximate to one or more tires of a vehicle. Preferably, the device may include a first vertical support and a second vertical support which may each be coupled to opposite sides of the collection aperture and which may also be coupled to an opposing side of the vehicle so that one or more tires are positioned approximately between the vertical supports. Tire debris thrown from the tires may enter the debris screen through the collection aperture of the first end and be retained therein between the first end and the second end.

Embodiments of the present disclosure provide a method and apparatus for reducing drag. An exemplary apparatus includes a semitrailer having a main frame extending along a longitudinal axis and a subframe movably connected to the main frame between a first position along the longitudinal axis and a second position along the longitudinal axis. The apparatus further includes an axle assembly attached to the subframe, the axle assembly including an axle, a left wheel set, a right wheel set, and a suspension, and a first recapture device located under the main frame behind and separated from the left wheel set along the longitudinal axis by a given spacing. The apparatus still further includes a second recapture device located under the main frame behind and separated from the right wheel set along the longitudinal axis by a second spacing.

The present invention relates to a mud flap lifting system for raising and lowering a pair of mud flaps connected to a rear portion of a vehicle and suspended behind corresponding rear wheels of the vehicle, which is particularly beneficial for use on dump trucks. The lifting system raises the rear mud flaps to a safe position when the truck is reversing or on unstable soil or is dumping its load. The mud flaps may thereafter be lowered via an associated control switch in the cab of the truck so that the truck may travel from the job site.

The mudflap system with universal adapter is centered on a bracket. The bracket includes optional inserts that can be added or removed to change the size of the bracket recess. By changing the size of the bracket recess, a single bracket may be used on multiple sizes of ball mountthe ball mount being portion of the vehicle's hitch system that generally protrudes from the receiver, accepting trailer coupler to connect to the trailer. The bracket includes tab recesses interface with tabs present on the inserts. The tabs and associated recesses act to align the inserts with the bracket and prevent over-insertion, thereby preventing the inserts from falling out during assembly. After placement of an insert within the bracket, threaded fasteners are used to clamp the bracket to the ball mount and to hold the inserts in position.

Embodiments provide an aerodynamic fairing system that may comprise a base configured to mount to a vehicle, an arm coupled to the base at a proximate end and extending laterally, an a fairing mounted to the arm having an inboard and an outboard surface. The fairing outboard surface may provide an aerodynamic outer surface to direct flow to an angle to the rear. The arm may a fixed or adjustable length arm. The arm may provide a mounting area for a mud flap such that aerodynamic system may act as a mud flap hanger. Embodiments also provide an adjustable mud flap hanger.