An axle assembly having a unitary trunnion bracket, an axle, and a support bracket. The unitary trunnion bracket may include an axle interface portion and a bracket interface portion. The bracket interface portion may extend from the axle interface portion. The axle may engage the axle interface portion. The support bracket may engage the bracket interface portion.

A trailer neck reinforcement structure includes a first beam reinforcement structure that includes: (i) a first beam inner insert connected to an inner side of the first beam; and, (ii) and a first beam outer insert connected to an outer side of the first beam. A second beam reinforcement structure includes: (i) a second beam inner insert connected to an inner side of the second beam; and, (ii) and a second beam outer insert connected to an outer side of the second beam. Internal cross members extend between the first beam inner insert and the second beam inner insert. A first group of external cross members are located between the first beam outer insert and the left side rail, and a second group of external cross members are located between the second beam outer insert and the right side rail. Each external cross member comprises an inner segment connected to an outer segment.

A torsion gooseneck coupler has a pin box that is designed to be affixed to an existing trailer. The pin box has a pin box torsion end and a lower assembly that each have a corresponding torsion bar. The torsion bars extend outwardly where each affixes to a corresponding torsion arm. The lower assembly is designed to affix to a towing vehicle. The lower assembly has an upper and a lower torsion tube that each has a corresponding torsion bar. The upper torsion arm affixes the upper torsion bar of the pin box assembly to the upper torsion bar of the lower assembly. Correspondingly, a lower torsion arm affixes the lower torsion bars of the pin box assembly to the lower assembly. The torsion tubes and bars resist rotation and cooperate to allow limited movement and provide resistance to forces along the axes of the upper and lower assemblies.

A trailer includes: a chassis defining a pair of cross members, each of the pair of cross members fixed in position with respect to the chassis; a floating coupling apparatus coupled to the chassis between a first cross member and a second cross member of the pair of cross members, the floating coupling apparatus including: a fixed rail suspended between the first cross member and the second cross member; and a floating rail extending from a position proximate to the first cross member to a position proximate to the second cross member, the floating rail configured to move relative to the fixed rail; and a displacement-sensing device configured to sense a load acting on the displacement-sensing device.

A gooseneck hitch locking apparatus and system that is safe and reliable, can standup to a large range of weather conditions, and can be activated remotely thereby allowing for the coupling/uncoupling of a trailer to a towing vehicle without requiring a user to climb into/out of the bed of the towing vehicle. A remotely controlled actuator raises and lowers a locking pin through a locking hole of a gooseneck hitch with a force loaded ball hitch locking plate, thereby preventing the locking plate from moving and keeping the coupled ball hitch from uncoupling. A handle connected to the locking pin is connected to the actuator via a fastener. The fastener may be removed, thereby allowing manual operation of the gooseneck hitch locking apparatus and system via the handle, thus allowing the manual coupling or uncoupling of a the trailer from a towing vehicle.

A cantilever extension for a primary trailer is provided. The primary trailer includes a frame that extends from a hitch end to a rear end, and a primary trailer deck coupled to the primary trailer frame. The cantilever extension includes a cantilever deck. The cantilever extension is rotatably coupled to the primary trailer frame proximate to the rear end, and the cantilever extension is rotatable between a stow position, wherein the cantilever deck is oriented in a substantially face-to-face relationship with the primary trailer deck, and a deployed position, wherein the cantilever deck is oriented substantially co-planar with, and aft of, the primary trailer deck. The cantilever extension in the deployed position is supported solely via coupling to the primary trailer.

A bogie for a lowboy trailer includes a rear suspension support assembly configured to carry a suspension system of the lowboy trailer thereunder and a front transition assembly coupled to a front end of the rear suspension support assembly and configured to couple the rear suspension support assembly to a lower deck of the lowboy trailer. At least a portion of the rear suspension support assembly has a closed cross section when viewed along a longitudinal axis of the rear suspension support assembly. At least a portion of the front transition assembly has a closed cross section when viewed along a longitudinal axis of the front transition assembly.

A trailer includes: a chassis; a floating coupling apparatus coupled to the chassis, a portion of the floating coupling apparatus configured to move in a vertical direction relative to the chassis; a kingpin attached to the floating coupling apparatus; a displacement-sensing device positioned between an attachment portion on the chassis and an attachment portion on the floating coupling apparatus, the displacement-sensing device configured to sense a load acting on the displacement-sensing device; and a fluid system in fluid communication with the displacement-sensing device.

Trailering systems are presenting including: a semi-truck trailer; a base positioned along a top surface the semi-truck trailer, where the top surface receives lower cargo, the base including, a pair of forward posts; a forward post mounting rail; a pair of aft posts, a pair of aft posts; an aft post mounting; and an upper deck slidingly engaged with the base, the upper deck including, a pair of forward slides; a pair of aft slides; a pair of side rails; an aft slide mounting rail; a decking; and an airbag system including; a number of forward airbags; a number of aft; and at least one control valve for inflating and deflating the number of forward airbags and the number of aft airbags.

A shipping system for a rolling tarp system has a trailer bed and first and second guide tracks attached to the trailer bed. The trailer bed has a towing element that defines front, sides, and rear portions. The first and second guide tracks are transverse to the trailer sides and configured to support the rolling tarp system. The rolling tarp system is loaded on and unloaded off the first and second guide tracks along the side of the trailer bed.