I would think as long as you have doors on you couls make to the top if the tires as thats where most of the breathers end from the factory.

 

As for your exhaust if you stall water will flow back up to the level it is outside your pipes. So if your right where your exhaust collector is your can bet that in just a little while the water inside the pipes will reach that level. If you start the Jeep up again you can suck water in through your exhaust. That initial crank of the crankshaft creates a vacuum action and pulls air from wherever it can.

Moral of the story... don't restart your Jeep when you're under water.

 

water will come past door seals and flood interior

I have had mine past the front fender
water can and could come over hood and will come in via hvac system.

 

30" according to Jeep (The Trail Rated badge is a minimum of 19" but the stock Wrangler can do more). Enough to get your feet wet if the doors are off. Naturally that's with no wake...

Jeff

Reference: http://www.carseek.com/reviews/jeep/2007-wrangler/

 

Oh you can go in water that's 20' deep. It's the getting out that's the problem. Jeeps number is certainly on the conservative side. That said, there are people out there who can break anything while inside of the prescribed limits. I've had mine mid grille with no issues. (and no water came through my door sills) Speed definately has an impact. I do my runs slowly, since I can't see what's underwater, I can't bring myself to hit runs at hydroplane speed. I had my old 88 cherokee nearly up to the hood on several occasions without taking on water. I'm surprized it wasn't floating the water was so deep. And this was a paved road.

 

No water inside here.


Or here

 

I did $500 worth of damage by mudding where my wheels only went about 1.5 -2 feet deep. Maybe I had too many rpm blasting too much mud and water into the my engine bay, but it's costing me and the warranty doesn't cover it. So, be careful with your stock JK if you're new to this, as am I. I wouldn't go in water w/o a lift and 33's and if you do keep the rpm down if you can.

 

Stock Rubicon going for a swim..

http://www.youtube.com/watch?v=Y71GkrKsmWI

 

I've had my Rubi up to the rock rails many times, no sweat. The only thing that leaked was a drain plug that does not seat correctly, so water leaked through it. 4Lo and let her creep.

 

There is NO vacuum affect thru the exhaust valve, it will never suck water in thru exhaust.