I have had my car lowered since I bought it brand new in 96. Recently my rear window started rattling when I go over bumps. I think it needs to be re-sealed. Any suggestions about where to go in Los Angeles to get this done. Also, do I need to get the ( new ) moldings that go around the outside of the window.

 

It is unusual for a rear window to rattle. Please consider the possibility that the rattle is coming from a source near the rear window. Sound "telegraphs" through the structure of a car and will sometimes fool you.

Open the trunk and examine the two torsion springs which support the weight of the trunk lid when it is raised. These bars are just below the parcel shelf and parallel to it. There is a plastic clip which serves as a spacer between the bars. That clip may have broken or become dislodged, allowing the bars to bang against each other.

 

I have already checked that and taht si not the problem. It sounds like a piece of glass that is squeaking. I even put myself in the truck and had my wife drive around over bumps to see if I could pin point the problem. The noise si coming from inside the car.