DIY floor pans.

If water comes in and it never drys it will wick through the jute padding and spread all over. It typically doesnt make it to the rear pans but can if your leak(s) are bad enough or the car is sitting for a long time.
I have been chasing a ghost leak on my 73 dart sport for a year. I have found several leaks but its still getting in somewhere. I probably wont find the real leak until I get this stripped and on the rotiserie. I ordered the one piece floor pan for it. Both of my fronts are totally shot.
It has been sitting for a very long time. It sat for a long time when I bought it in 2001 I think it set from 1993 till 2001 then I drove it till 2004 and it's been parked since. The front passenger side floor and the front frame rail was rotten when I bought it in 2001 I replaced the floor and fixed the frame back then I never took all that jute padding outbid the back until the other day I had no idea it was rotten like that back there it could have been like that back then and I never knew it.