Going through deep water

Does anybody know if I would have a problem going through water as deep as the bottom of my door? Such as:
Water in rear differential
Sudden Cooling of hot parts
Water in alternator
Wiring connections- oxygen sensor etc.
Engine block
Exhaust system
I have to cross a pretty large Creek to get out of where I live. Does anyone have any experience with this?

 

Wouldn't chance it especially with the exhaust and electrical

 

28 inches or so is the recommended max depth. Bottom firmness and speed of the water is always a concern and once in, maintain a bow wave and don't speed up or slow down.

 

Search TW for rear diff breather mod. Water bad.

 

Thank you Grendelthewise for the advice.
Actually, when I have appointments to make, I have to cross whether I like it or not. I put it in second gear low and pray. Sometimes the water waves over the hood. I have been doing this at least a couple times a year for the last 12 years. I don't know if this is normal or not but I've had to get the corrosion out of my rear tail lights and license plate lights to get them to work again. Also, my valve cover gaskets have been leaking the last four years, nothing serious though.
Toyota makes a pretty tough truck I must say.

 

With a solid bottom that is OK. There are lots of public roads in rural areas with similar water crossings. Just be careful when water rises from rainfall.

In mud there is always the chance of sinking deeper into mud and getting in water too deep. The key is speed. You don't want to hit it fast and create a splash. You don't want to creep slowly through either. Enter at a steady speed and either maintain that speed or speed up slightly. If you do this, you push the water in front of you and there is no time for water to get where it doesn't belong. Water can't get in the exhaust or most other places as long as you're moving and the engine is running. Creating a splash might get water in the air intake. That's a fatal error. The rear diff breather should be able to handle water that deep or more.

I'd be more careful with modern vehicles with computers and complex electronics. But I've been in water up to my headlights and deep enough for the clutch and brake pedals to be underwater in the cab. I've seen guys have water wash over the hood temporarily in the past. None of us ever had a problem, but that was 50 years ago.

 

Thank you for the input so far.
I wanted to ask if there are drain holes in the cab to drain water out, but also allow water to enter inside when going through high water? Does anyone know where those holes are located? I never leave my windows open so I would like to plug them holes to keep water out.

 

It sounds like you've cross water more than most of us!

There's lots of threads on it, its not good for the truck, but its obviously doing it.

Marine die electric grease is a good idea.

Rear diff breather extension wouldnt hurt.

But it sounds like you need a taller truck, thats crazy.