might want to temporarily plug your diffs' breather tubes or more appropriately, raise them higher than the water level. You don't want water getting in the diffs.. What happens is the hot diffs stay hot and then you drop them in cool water and the temp drops. At that same time your submerging the breather.. what happens when air goes from hot to cold? that's right, it contracts.. therefore your diff literally SUCKS the water right in. If your diff fluid looks like frothy chocolate milk after or just dark from lack of maintenance, change it. frothy means water got in and your diff will not like that. Wanna say the trans has a breather but it's not easy to reach without serious dissasembly. Make sure you check your diffs, tcase, trans and oil after this. Remember your ECU is under the passenger side floorboard. jus sayin, lol. I don't know cause I have no exp here. I'd like to find out though. You may regret it or nothing bad happens.. those are the two extremes. the middle consists of quirks. I too would like more input on it. This is why I only really go deep in Snow cause snow unlike mud/water doesn't get into the electronics or flood the diffs or interior. It's a cleaner version of mudding.