Abstract: An axle suspension system and a method of manufacture. The axle suspension system may have an axle, an axle wrap, and a weld seam. The axle wrap may receive the axle and may have a first end portion and a second end portion that overlaps the first end portion. A weld seam may couple the first end portion to the second end portion.

Abstract: An axle suspension system and a method of manufacture. The axle suspension system may have an axle, an axle wrap, and a weld seam. The axle wrap may receive the axle and may have a first end portion and a second end portion that overlaps the first end portion. A weld seam may couple the first end portion to the second end portion.

Abstract: An axle suspension system and a method of manufacture. The axle suspension system may include a trailing arm assembly disposed on an axle wrap. The trailing arm assembly may include a lower portion and an upper portion. The lower portion may have a lower intermediate wall. The upper portion may be fixedly disposed on the lower portion and may have an upper intermediate wall. The lower intermediate wall and upper intermediate wall may be spaced apart from the axle wrap.

Abstract: An axle suspension system for a vehicle. The axle suspension system may have a cam bracket that may be disposed on an exterior surface of an axle. The cam bracket may extend through a weld window of an axle wrap.

Abstract: An axle suspension system for a vehicle. The axle suspension system may include a trailing arm assembly that may have a shock absorber passage. A shock absorber may extend through the shock absorber passage.

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 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 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: 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.