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6. Once marked, the front plate was removed from the frame and the bracket welded to it with some very large tacks. The lower bracket was tack-welded to the housing as well. Complete welding will be done later once we know everything is aligned properly and the suspension cycles without binding. On a triangulated four-link, the lower control arms run parallel to the frame, keeping the rearend from moving front to back, while the upper two arms are mounted on angles to prevent the rearend from moving side to side. This eliminates the need for a Panhard bar to keep the rearend centered.