Location of Frame Drain Holes?

Hi there,

I had my truck undercoated by the dealer when I bought it last year and have been wanting to make sure that the holes/drain spots that aren't supposed to be blocked, aren't blocked. I don't know much about frames and am wondering if anyone can point me in the right direction as far as what to look for when making sure the undercoating isn't somewhere it shouldn't be.

Thanks!

 

good question

sub'd

 

Drainage for boxed part is weird, there are notches along side of weld that serve as drain holes, but main drain holes are square next to cab mounts. However all that is crap anyway because water travels in between metal and can flow all way to the end of frame.