Hummer Guy/Fstop/Builder Help?

[HummerJim]

For those of us doing water crossings, there's been discussion about raising the vent tubes on the automatic transmission. The old Ford C6 automatic had a vent tube on the passenger side front that you could raise easily with a marine clamp and some rubber fuel hose. Looking under the H3, I don't see any vent tube on the automatic transmission and I'd hate to get water into it. One thing I can't overemphasize is, if the engine dies with the exhaust underwater, you might be sunk in more ways than one.