2015 4Runner fording water depth limits

4runner43

New member
I know that Toyota says that there is 9.6 inches of ground clearance for my T4R before it starts scraping the boulders and rock ledges on the trails, but no where can I find an "official" statement for the depth of water that a stock T4R Trail edition can drive through safely. I have looked around on other "sites" and I see everything from "up to the middle of the wheels" to "well the FJC can ford 27 inches (about 700mm) of water so the T4R should be able to do that as well" Some folks caution about getting water into the rear differential breather and others say it doesn't have one. Others say as long as you are moving then you can probably ford water up to the headlights, or other body parts depending on whose posting you read. Some say it may depend on the "bottom" of the water - if it is stones/gravel then up to the - insert a body part here - is okay. If it is mud or soft sand then the water depth may be less.

So I am really confused.

There are basically two reasons I ask : (If there are others, then I haven't encountered them yet.)

1. The last time I was out at one of the local off-road areas I encountered some "deep-looking" mud holes and decided that with my stock vehicle and being solo, discretion was paramount for safety and getting stranded. I wouldn't mind going through them, if I knew how deep they were and how much water I could have safely forded. (After a recent experience in the Peace River Country, I have very little doubt that I can get through the shallow, muddy ones.)

2. I was up the Transalta road (before bear) and when we got to the Ghost river, the normally empty channels or shallow (4 to 6 inches), slower moving water was tearing right along and was so "muddied up" that it was difficult to determine exactly how deep it was and I wasn't about to use the T4R as a depth gauge - again alone and in a stock vehicle.

So I am hoping there are some other 5th Gen owners out there who may have some experience fording water bodies, relatively slow moving or standing, and faster moving, that they might care to share. Alternatively, they may know where the breathers are positioned and how much water can be safely forded without mucking up some important moving part of the vehicle.

I definitely know where my air intake is and, rest assured, I will definitely keep the water level below that, but how far below is necessary, is the real question.

4Runner43
 
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When I took an Off-Road 101 class they explained the fording limits in terms of the air-intake on the in front passenger side fender (you can see the slits in the fender liner). This is approximately 2/3 up the height of the stock wheel, meaning you should be able to ford between 24-30 inches of water safely if done correctly with no wake. If you drive too fast and flood over the engine you could essentially hydrolock yourself in 6-12 inches of water. Here is my explanation from the driving course I took with some pics. There is some more info on the course itself on the previous page of my thread.

http://www.toyota-4runner.org/5th-gen-t4rs/222282-cymons-weekend-warrior-mfd-thread-2.html

As for the breathers [MENTION=3442]Boyds4Runner[/MENTION] explains the locations here.

http://www.toyota-4runner.org/5th-gen-t4rs/150158-rear-diff-breather-mod-complete-3.html

And there are many options on how to extend them...Here is how I did mine.

http://www.toyota-4runner.org/5th-gen-t4rs/215741-rear-differential-breather-mod-dummies.html
 
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Going through water doesn't mean just blasting through...due to popular belief.

Get some training so you understand depth, bow wake, etc. to save yourself a whole bunch of problems in the future.

If there's any question, don't do it period. If your problems are bigger than if you get stranded, stalled,ruin your truck and possibly drown...then go for it.
 
Here is me fording water with my 4th gen trail.

https://youtu.be/Z9xwkuGuGe4

You definitely want to stay out of mud holes. Those are never good and likely you will get stuck and water will slowly start seeping into the cab if the water level is up to the bottom door sills

When crossing you definitely want to go slow and create a nice bow wave in front of the vehicle. The worse thing to do in a deep water crossing is stop or get stuck then you are SOL. I usually walk a water crossing first before I actually cross with the vehicle.
 
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*The 4runner is not a boat
*Never drive through water you do not know the depth/conditions of the bottom
*Your rear diff. does have a breather but extending it does nothing to help you cross the water, its purely for longevity reasons to keep water out of the diff.
*Moving Water is much more dangerous then standing
*The 4runner is not a boat
*Always have a plan B if you must do a water crossing (is in winch, is it a second tow rig and if so do you have your recovery line already attached, is it "phone a friend" etc)
*The 4runner is not a boat
*You are running a higher risk when attempting water crossings
*Drive slow
*The 4runner is not a boat
 
*The 4runner is not a boat
*Never drive through water you do not know the depth/conditions of the bottom
*Your rear diff. does have a breather but extending it does nothing to help you cross the water, its purely for longevity reasons to keep water out of the diff.
*Moving Water is much more dangerous then standing
*Drink a beer
*The 4runner is not a boat
*Always have a plan B if you must do a water crossing (is in winch, is it a second tow rig and if so do you have your recovery line already attached, is it "phone a friend" etc)
*The 4runner is not a boat
* Ask friend to hold beer and yell, "Watch this"
*You are running a higher risk when attempting water crossings
*Drive slow
*The 4runner is not a boat
*Yell, "YEEEEHAAAWWWWW"
fixed it
 
Stock ground clearance is 9.6"? A Subaru Forester is 8.7" and for some reason I did not expect the two vehicles to be this close in clearance. I'm kinda baffled.
 
Stock ground clearance is 9.6"? A Subaru Forester is 8.7" and for some reason I did not expect the two vehicles to be this close in clearance. I'm kinda baffled.

If you've ever crawled under a Subaru (Outback, Forester, Cross-Trek) you'll understand. Everything is extremely well designed and tucked up under the vehicle. They really get the most of what they have, and having the flat boxer engine allows them to do this while also keeping the center of gravity of the vehicle relatively low for its clearance.

Technically the Subaru's have more ground clearance then all unibody SUV/CUV's, even the JGC models that don't have the QuadraTrac II air suspension.
 
OP, the reason you can't find the official depth a 4Runner can go through is because there is no official depth. For any vehicle. FWIW I went slowly through 30" of water recently. I'm still here.
 
Careful! You almost smacked me with your swingin' dick, Stud. :hat:

The two most important things to remember are:

-your 4Runner is not a boat
-always walk water crossings

Even doing the Mojave road we walked the river just to be sure of the ground below.
 

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Waiting for that thread titled "Warranty won't cover water damage and Toyota voided warranty those Bastards never buy another Toyota again"..

:lalala:

Careful! You almost smacked me with your swingin' dick, Stud. :hat:

The two most important things to remember are:

-your 4Runner is not a boat
-always walk water crossings
 

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