I have 2000 Landcruiser which sometimes has rainwater come in from somewhere around the rear hatch. It seems like I always have to slam shut the rear hatch to prevent the leak. I assume replacing the weather stip around the rear hatch would solve this issue. Has anyone replaced it before? Is it difficult? I had a rain leak issue from the third stop light 3 years ago and it has been fixed and that is not the cause of the leak this time.