These are CAM pictures from my 06' before I install Adjustable LCA. CAM bolts have welded oval washer @ head and oval washer & nut on threaded side. Notice it rides inside axle bracket slot in first pic. Second pic shows bolt/washer is out of slot which is not correct. Also, notice the bolt is keyed in one side so the washer cant freely spin. CAM allows fixed length LCAs to be shorten/longer about 1/4 inch to fine tune pinion angle.