Currently I'm on my 2nd Trektop. The top flaps like crazy with all the windows and top on and up. Not only does it flap every time it rains lightly not only does my floor boards get soaked when I drive the front seats get a nice steady drip on the shoulders of the passengers. Someone please chime in on how to fix it. Thanks

 

Where exactly is the flapping coming from? Is coming from the spot right above the driver and passenger seats along the door frame?

 

Do you have the arch bar installed?

 

Double check that your spring loaded string is set up properly. If the brackets were installed incorrectly there won't be enough tension to hold it down. If they are set up right, try using the second hole to put more tension on it

 

2 door or 4 door