I just am finishing assembling a wrecked Wide Glide. I installed the taillight and license plate bracket. I seem to be missing something with the license plate bracket. I am using an OE harley black plastic bracket.It mounts with 2 bolts through the struts. What keeps it from swinging down? I tightened bolts but after short time,it starts to swing down. Wondered if anyone has had this apart? Appreciate any tips! Tom[&:]