[crakarjax]

I have an open hole inside the cab corner also, I assumed it was just a really oversized drainage hole. There's no rust on mine so I know it's factory, but I plan to just seal it up and then add a small drain hole at the lowest point. I've never head of an inner cab corner, but that's probably just part of the floor -- also sometimes called the inner rocker so maybe inner cab corner just refers to the floor behind the cab corner?