I have a Big Country 3300 with three slides. One of the slides leans toward the inside on the top. Because of this when the wind come from the direction of that slide I get air infiltrating the inside of the trailer. My question is, are there instructions for me to adjust the slide so that it seals better at the top? I can stick my fingers between the slider and the wall there is about 1 1/2 difference between the slider on the top and the bottom.