The rack should be bolted down. It doesn't matter if the tie rods are attached to the wheels or not--you only want the steering wheel to be centered relative to the lock to lock centered rack. Once that's done you can then adjust the camber (changing camber will affect toe--so camber comes first). Now with the steering wheel locked in place (shops have a simple tool that sits on the seat and puts pressure on the wheel) but that isn't absolutely necessary as long as you check that the steering wheel has stayed straight while doing the toe adjustment for each side. -- Dave