i dunno if this helps u or not but i found i had same problem with stripping pealing but it wasnt leaking there to stop the leak i was baffled i have 2 luminas and they leak on different sides what i found after a very very long time is water was getting in there some how i still not 100% sure but it comes through the sealents they used on the wheel well on the inside so what i did was i took grit guard and sprayed the drivers back wheel well from inside the thing is it doesnt seem to dry on the that sealent gm puts on sstays tackey, and on other side i ssprayed grit guaard on where the back frames are put together under neath and that has stoppled my water in the trunk