As well as replacing a door because it has become rusted or been damaged in
an accident, you may also need to do this job before a respray. With the doors
off, the door pillars and inside surfaces can then be resprayed properly.
One of the main reasons why so many cars are stolen is that a thief, even if inexperienced, can force a standard car door lock in a matter of seconds, often using nothing more than a piece of coat-hanger wire.