stupid truck tricks (crossing water) and other dumb questions

4RNner

New member
Hey everyone; I have a few quick questions about crossing water in a 4Runner. I took my truck out for some fun today, and for the first time ever had to cross some water.

My question is; how deep of water would you be comfortable crossing in a stock '16 SR5?

There were three water crossings total on the short trail I did, and I walked every crossing before driving through - the water was shallow, and only at one point maybe went above my boot.

At the deepest, lets round up and say the water was maybe 1 foot deep maximum. From what I could see the water never got higher than the lower 1/3 of the wheels, maybe at absolute most halfway up the wheel if we are generous.

After the last crossing I took a look underneath and it looks like the bottom of the rear diff never even got wet, and only the bottom face of the fuel tank and engine skid plates got wet.

I was very careful with every crossing and checked them all out ahead of time, but now that I am home I find myself overthinking this.

When should one become concerned about checking differential fluid or transmission fluid? Do I need to worry about anything now? I did do a search and read a bit of some past threads regarding similar questions, but I still wanted to get some relevancy to a stock '16 SR5.

Thanks for reading!

And of course, some pictures to share: 4Runner easy mode - Album on Imgur
 
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you are absolutely fine. I wouldn't be worried about changing your diff fluid unless you went through water that was 2/3 or higher than your tire. Even then you are probably fine.

You can always check the fluid by popping off the fill plug and dipping a finger in. See if it's milky or whatever.

Also, extending your diff breather up higher is pretty simple and cheap - anyone can do it after a trip to home depot and some basic hand tools in your driveway.

Seriously, wouldn't worry about that at all my friend!
 

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