They dont move at all once they are screwed on, well mine dont anyway. Just undo the screws a little and you will be able to slide the lid back towards the cab and do them up again. It will be easy enough with the lid open, you may need someone to push from the end though to hold it back while you screw them back up tight. Either that or just pull the pins out of the hinges and take the lid off and do it, you can see the pins hanging down and clipped into the bracket. You will deff need 2 people for that though I did mine the other day, have someone on the back holding the lid or it will get messy