Does anyone know how to keep your doors from making the huge crash and bang when you close them. Its especially bad when the window is down, even a little bit. I figured I could probably put insulation in them, but I was wondering if there is anything else I can do??

 

Adjust the window guides at the top of the door under the black trim piece, also make sure the rods aren't hitting the frame of the door, if the are, put some padding on the frame side of things, maybe tear a piece of weatherstripping from a junker and glue it on the problem areas

 

There are two door window guide stabilizers per door. They are a formed sheet metal piece with a black felt material that contacts the glass. The window guides have likely worn. These stabilizers need to be re-adjusted to press against the glass. Classic Industries sells them in case you need new ones. P/n G1200 for 82-87, p/n G1201 for 88-92.