Hey Tin, if your top is not aligned properly, with the same spacing between it, and the back window, on both sides, it will leak. Try loosening all six torx bolts that hold the top down, and make sure you are sitting straight, on the tub. Also, check the spacing between the hard top, and the back window. See if that helps any. If it doesn't, then you probably do need to replace the rubber, around it.