Northern Lite 2013 10-2 cdse

Hello, It,s been a long time since I've posted.I found some water damage (minimal) and I can't determine if it's coming in my generator door (no gen.) or my basement door under the step/rear entry, anyone come across this problem. I imagine any pre "factory fire" 10-2's should all be the same as they didn't change there molds all that often. So (I'm guessing) any 2000 to 2013 should be the same shell/tub. Thanks K Mac.