65 Dart Wagon Conversion to a Sedan Delivery

I didn't think of that but it might be. I didn't see anything or feel anything when I poked my fingers in there although if there's a nest, it's likely near the top where the liquid could run down to where it's rotted away - yuck! I'll find out once I get into it depending on which way In go - complete pillar or just the inside panel.
Curious that i have noticed thru the years mouse holes/nests hidden behind the sunvisor- almost always behind the passenger side-- anyone speak "mousese?"

also it seems that usually the drivers side rusts more in areas where salt is used on roads- probably because of the spray from cars passing by the other wasy- I think also back in the day that driver's side headlights burned out more than passenger side....