Not to be rude but that rear shackle mount is pretty cheesy. They should have drilled thru the frame and welded the tube in with washers welded to either side. I'd be mad if I paid for that.
i totally agree.... will address at later time..chassis people need finesse sometimes... otherwise... no soup for you mentality may come in... tactfull is my approach... simply wait and ill go back and say ...hey ...i was looking at this and thinking.... blah blah.... the price to put the rails in was fair at this point.