A trailer slider suspension including a tubes and wires support system. The slider includes a frame slidably coupled to and supporting a trailer. The frame includes a cross brace including a pair of overlapping straps to resist twisting. A rotatable shaft is coupled to pins on the frame which are thereby selectively retractable and extendable into the trailer whereby the frame can be moved and fixed along the trailer. Supporting brackets are provided including a central portion and left and right arms extending therefrom. A shaft hole is provided in the central portion and straps openings are provided in each of the arms. The bracket is secured to the frame at a distance from the straps overlap with the rotatable shaft extending through the shaft hole, one of the straps extending through the left arm strap opening and the other strap extending through the right arm strap opening.
