Do the Do the British police REALLY allow muslim cops to wear their religious clothing on duty?
Hi it is most likely a rubber Bush on the suspension swinging arm which would do this, there is a special lubricant designed to be sprayed on to stop these sorts of noises.
to fix a screen you take the frame off, unscrew the two halves of the frame and put a new piece of net into it. For a big gap, repair is not an option. It won't be too difficult, just try to get the same colour screening. If you look around, your parents probably have a spare piece, in the garage or the loft?