Drain plug question

After installing the step up footrails on the 19 Tacoma I noticed while looking around under the truck that there are plastic drain plugs under the cab. Why would that be? How would water get in the cab to begin with?

 

Those are drain holes from when they dip the body (cab) at factory for rust protection. The plugs are to seal off underside from the elements.

 

Are these drains for owners who use the snorkel and cross streams getting the entire cab submerged? That would not be me BTW. Just curious. There are several under the truck.

 

THANKS. That sounds like a great idea. I just never noticed any drain plugs on the other trucks I've owned. THANKS

 

Some manufacturers use metal plugs seal from inside, usually oval shaped.

 

ALL Jeeps, Broncos, Scouts, FJs, and any other serious off road vehicle has cab drain plugs. How ya post to get the water out of them after a deep water crossing?

 

This makes sense. My 1st gen had two holes at the front of the bed that the dealer said was there as part of the assembly process, probably for when they dipped the bed. Obviously you don't see those on the beds of the 2nd and 3rd Gens because of the composite used in the beds now.