Cab Corner Drains? Help Please

[audaciousduo]

Hello Folks,

I've searched and searched but with no luck. I'm a few days away from primer and need a question answered. I have no rust in my cab corners but have identical 90 degree sheet metal tabs tacked on the bottom of my cab corners. Is this factory or did the previous owner fabricate them and tack them over a drain hole? Or is there even a drain hole there? From the inside I cant see with a flash light but it would make sense to have a drain hole there as all the mud and water would spray up in there from the rear wheels. My parts truck is no good for a reference as its got terminal rot from the body line down.

Thanks

Primer soon