Re: Door sag
I use my car as a daily driver and had the hinges adjusted like crazy. They are made of aluminum and wear out much quicker than a steel hinge. It is easier to replace the hinges than to go through multiple weather stripping and possibly tearing up the interior panel (which costs $1,100 to replace).
The fact is that the hinges are aluminum and will eventually need replacing. The folks at Chrysler weren't thinking too clearly when they decided to use only one aluminum hinge on each door.