Abstract: An axle alignment system for an axle assembly. The axle alignment system may include a bracket assembly and an alignment plate. The alignment plate may be moveably disposed on the bracket assembly with one or more fasteners that may move along one or more slots that may be provided with the bracket assembly and/or the alignment plate.

Abstract: An axle alignment system for an axle assembly. The axle alignment system may include a bracket assembly and an alignment plate. The alignment plate may be moveably disposed on the bracket assembly with one or more fasteners that may move along one or more slots that may be provided with the bracket assembly and/or the alignment plate.

Abstract: An axle alignment system for an axle assembly. The axle alignment system may include a bracket assembly and an alignment plate. The alignment plate may be moveably disposed on the bracket assembly with one or more fasteners that may move along one or more slots that may be provided with the bracket assembly and/or the alignment plate.

Abstract: An axle alignment system for an axle assembly. The axle alignment system may include a bracket assembly and an alignment plate. The alignment plate may be moveably disposed on the bracket assembly with one or more fasteners that may move along one or more slots that may be provided with the bracket assembly and/or the alignment plate.

Abstract: A trailing arm assembly for a suspension includes first and second axle wraps. The first and second axle wraps are welded to each other to substantially surround an outer perimeter of an axle member. The first axle wrap is then welded to one side of the axle member at a first weld area and the second axle wrap is welded to an opposite side of the axle member at a second weld area. The first axle wrap includes a spring seat and the second axle wrap includes an arm body with a bushing receiver portion at one arm end. A bushing tube attached to the bushing receiver portion. The first weld area comprises a single window weld and the second weld area comprises first and second window welds that are positioned on opposing sides of the arm body.

Abstract: A sliding suspension includes a plurality of locking pins that are selectively moved between extended and retracted positions to allow adjustment of the sliding suspension relative to a trailer frame structure. A lever is fixed to a tube that is supported by a cross-member of a slider frame. A cam is supported on the tube for rotational movement relative to the tube. Laterally spaced locking pins each include a pin connection link that is coupled to the cam. Each locking pin includes a single compression spring, and each pin connection link includes a slot, which cooperate with each other to provide independent pin extension at each pin location. A torsion spring is coaxial with the tube and includes one spring end that is coupled to the lever and another spring end that is coupled to the cam. The torsion spring allows the lever to be decoupled from the locking pins if one or more pins are stuck such that the pull handle can be pulled and locked into place to allow adjustment.

Abstract: A trailer slider assembly includes a handle that moves a trailer slider locking mechanism between an unlocked position and a locked position. A suspension side rail has a retaining feature that holds the handle in the unlocked position. A release mechanism releases the handle from the retaining feature in response to a release of a parking brake. This prevents a vehicle from driving off with the trailer slider locking mechanism in the unlocked position.

Abstract: A trailer slider locking system includes body rails longitudinally slidable relative to a suspension frame side rail. The body rails have holes providing multiple suspension positions. A pin locking system includes a pin moveable between retracted and locked positions. An end of the pin is received in one of the holes in the locked position. The pin has a first centerline and the holes have a second centerline. The end of the pin extends through the hole with the centerlines offset from one another in the locked position. The pins have tapered ends so that the pin will extend through the body rail hole prior to advancing to the fully locked position.

Abstract: A trailer slider locking system includes body rails longitudinally slidable relative to a suspension frame side rail. The body rails have holes providing multiple suspension positions. A pin locking system includes a pin moveable between retracted and locked positions. An end of the pin is received in one of the holes in the locked position. The pin has a first centerline and the holes have a second centerline. The end of the pin extends through the hole with the centerlines being offset from one another in the locked position. The pin has a tapered end so that the pin will extend through the body rail hole prior to advancing to the fully locked position.

Abstract: An interlock for a slider incorporates a cover that moves between a covered position and an uncovered position. In the covered position, the cover prevents access and movement of a handle for actuating locking pins on the slider. The cover may be pivoted to an uncovered position at which the handle can be actuated. Generally, the handle is pulled away from a trailer frame for the slider to move the locking pins out of holes in the trailer frame. When the cover has moved away from the covered position, the cover actuates a valve member that sets at least one park brake. To release the park brakes, the cover must be moved back to the covered position. The cover cannot be moved back to the covered position until the handle is in a position indicative of the locking pins being fully received in the holes in the trailer frame.

Abstract: A trailing arm assembly for a suspension includes at least first and second cast components. The first and second cast components are welded to each other to substantially surround an outer perimeter of an axle member. The first cast component is then welded to one side of the axle member at a first weld and the second cast component is welded to an opposite side of the axle member at a second weld. A bushing tube is then welded to one of the first and second cast components and is subsequently attached to a vehicle frame member. The first weld area comprises a pair of laterally spaced window welds and the second weld area comprises a single window weld.

Abstract: A trailing arm assembly for a suspension includes at least first and second cast components. The first and second cast components are welded to each other to substantially surround an outer perimeter of an axle member. The first cast component is then welded to one side of the axle member at a first weld and the second cast component is welded to an opposite side of the axle member at a second weld. One of the first and second cast components includes an integrally formed air spring seat and the other of the first and second cast components includes an integrally formed bushing housing for connection to a frame.

Abstract: A tractor-trailer slider includes spaced apart longitudinal side rails having control arm supports extending downwardly from the side rails for supporting the slider. Portions of the longitudinal side rails and the control arms supports are integrated using one or more common plates. Lightening holes and edge of the slider are flanged to reinforce the walls. Coining and ribbing are also used for additional reinforcement. Lateral cross-members extend between the longitudinal side rails. The lateral cross-members have tabs on opposing ends that are received in an interlocking relationship with complimentary elongated slots in the longitudinal side rails. Air spring supports arranged at forward and rearward portions of the slider are secured to the longitudinal side rails, the control arm supports, and the lateral cross-members to provide a structurally rigid frame. The air spring supports provide spaced apart air spring mounting pads.

Abstract: A slider locking pin control receives feedback of the actual position of the locking pins. If the locking pins are not engaged in the trailer frame rails, then the interlock valve will vent air to release a parking brake. Once the locking pins are engaged, the interlock valve will allow the flow of air to release the parking brakes. If the vehicle operator attempts to move the vehicle, but the locking pins are not engaged, the operator will be unable to release the parking brakes. This will prevent movement of the trailer until the locking pins are engaged. The interlock valve is placed downstream of a spring brake control valve and pressurized air reservoir, such that the pressurized air reservoir can still receive pressurized air to charge, and provide air for use by various components on the trailer.

Abstract: This present invention provides a suspension slider assembly for a vehicle trailer comprising first and second spaced apart longitudinal members. A structure having a generally continuous, uniform wall is secured between the longitudinal members. The structure also includes a lateral portion extending between the longitudinal members. The wall includes a central portion adjoining opposing first and second angled portions that extend from the central portion at an angle relative to the lateral portion and longitudinal members.