I help my body guy do mine on saturday.First attached the regulators to the body with 3 small bolts.Slide the square roller on it into the channel on the body.Then put the long piece in next.Anchor it in the bottom, then angle to the left on the pass side one to the right on the driver side until it lines up with the hole.Slide thru the hole from the back side,the put the nut which has the washer attach to it on.Do not tighten these nuts.Do both sides like this and let me know when you are done.