First time out with questions

[swim.bike.run]

First time out today and had a blast. I'm hooked. Sandy, muddy and a few water crossings. So glad I bought the truck.

Anyhow, also have a few questions. From reading and searching the thread I am unsure of a few things. First, do I need to relocate the breather for this type of water. Next, how well do you clean the under carriage after getting muddy and sandy.

 

[04rnr]

First, do I need to relocate the breather for this type of water. Next, how well do you clean the under carriage after getting muddy and sandy.

no, you do NOT "need" to relocate it, just is piece of mind.

 

[Jono.ful]

I have yet to do my breathers, more so out of laziness, but it is a good idea. By design, they are not supposed to allow the passage of water into your difs, but shit happens. It's an easy and inexpensive mod.
As for washing out the undercarriage, yes absolutely do it. Also take this opportunity to inspect the underbelly for damage from your recent adventure.

 

[swim.bike.run]

I have yet to do my breathers, more so out of laziness, but it is a good idea. By design, they are not supposed to allow the passage of water into your difs, but shit happens. It's an easy and inexpensive mod.
As for washing out the undercarriage, yes absolutely do it. Also take this opportunity to inspect the underbelly for damage from your recent adventure.

Ok. Ill look into the ARB and thanks for the advise. Do you typically use a hose or pressure washer for the harder stuff?

 

[Spenny]

I have a sprinkler for my hose - one that does the wall of water back and forth - I rotate that under my 4Runner after muddy runs, seems to do the trick. Set it, walk away, come back - move it, repeat. That and combo with hose for the wheel wells.

 

[Jono.ful]

Ok. Ill look into the ARB and thanks for the advise. Do you typically use a hose or pressure washer for the harder stuff?

I have a pressure washer that I use along with a couple ramps to get easier access.

I wouldn't waste the money on the arb kit. Dif breather hardware is readily available at most hardware stores

 

[living4surf]

Corbett? How much was even driveable? Haven't been out there for awhile assumed all the trails were underwater.

 

[wfo9]

Yes you should use a relocated open breather if you do water crossings that go up to the hubs.

It's not for the reason most people think though.

The rear diff has a one way breather on it from the factory. The diff gets hot as you run at speed.. air expands and it needs a place to go otherwise it would blow out all your seals...

But when you go into water.. The diff cools (obviously) and then a vacuum is formed. Depending on water temp and how hot your diff was (and how high the water is).. it will suck in water past the axle seals. Now your diff oil is contaminated with water. Not a huge deal as they are very resilient and will run fine with dog piss in them for a long time... but it will eventually cause bearing failures. So you can either relocate the breather, don't do water crossings over the hub height, or change you diff fluid more frequently.

It's not a huge deal, but I prefer to keep water out. Everything in the front is already a proper open breather....

 

[swim.bike.run]

Corbett? How much was even driveable? Haven't been out there for awhile assumed all the trails were underwater.

6 was drivable throughout except for the right turn before running along the canal. There was enough to make it fun for the day. Everything else was closed. Even had to rescue a hunter in one of those 4 wheel mudder sets ups as his axle broke.

 

[living4surf]

6 was drivable throughout except for the right turn before running along the canal. There was enough to make it fun for the day. Everything else was closed. Even had to rescue a hunter in one of those 4 wheel mudder sets ups as his axle broke.

good to know. I'm in Jupiter if you are going out and want another vehicle to tag along send me a message.

 

[swim.bike.run]

good to know. I'm in Jupiter if you are going out and want another vehicle to tag along send me a message.

You got it. probably gonna try next week sometime so ill holler.

 

[kenwilliams0803]

If you pressure wash the underside, try not to hit the u-joints on either end of either driveshaft. That kind of pressure can force water past the seals and into the caps. I recently heard about an entire fleet that did that and then had driveline problems with like almost all of their trucks shortly after that. They were brand new trucks. Doesn't hurt to grease the u-joints and the slip splines after as well.

Sent from my SM-G900V using Tapatalk

 

[wfo9]

If you pressure wash the underside, try not to hit the u-joints on either end of either driveshaft. That kind of pressure can force water past the seals and into the caps. I recently heard about an entire fleet that did that and then had driveline problems with like almost all of their trucks shortly after that. They were brand new trucks. Doesn't hurt to grease the u-joints and the slip splines after as well.

Sent from my SM-G900V using Tapatalk

too much grease in the slip joint causes many problems. U-joints.. not a problem.

 

[BobsTrail]

There is a very good post in the sticky section about the rear diff breather with photos and part numbers.

I did not bring mine to the outside area by the gas cap, I tied it off inside the panel. No diff oil odor, no problem.

http://www.toyota-4runner.org/5th-gen-t4rs/81938-rear-diff-breather.html

 

[swim.bike.run]

There is a very good post in the sticky section about the rear diff breather with photos and part numbers.

I did not bring mine to the outside area by the gas cap, I tied it off inside the panel. No diff oil odor, no problem.

http://www.toyota-4runner.org/5th-gen-t4rs/81938-rear-diff-breather.html

Seems like an easy mod.

 

[JSparky]

There is a very good post in the sticky section about the rear diff breather with photos and part numbers.

I did not bring mine to the outside area by the gas cap, I tied it off inside the panel. No diff oil odor, no problem.

http://www.toyota-4runner.org/5th-gen-t4rs/81938-rear-diff-breather.html

x2 for inside panel, mine terminates where the factor jack is stored. Used an inexpensive in-line fuel filter to keep anything from incidentally clogging up the hose. Did mine in about 30-minutes.

 

[e60ral]

i think the land cruisers also don't have diff breathers, the chance of you having problems from not installing diff breathers is pretty low

but for the cost of some fuel line and a few fittings there isn't a good reason not to install a rear diff breather

 

[living4surf]

I guess I never answered your original question I drove those same trails several times with water deep enough we turned back a few times and had no problem with the diff with the stock setup. With that said I now have my breather located in the engine bay on the firewall. It's cheap enough it seemed like good insurance.

 

[mcox522]

x2 for inside panel, mine terminates where the factor jack is stored. Used an inexpensive in-line fuel filter to keep anything from incidentally clogging up the hose. Did mine in about 30-minutes.

Interesting...I located my ARB kit in this spot and when I turn on the AC with recirculated air on I get a smell of gear oil. This is the only time I smell it though. You guys have any thoughts on this? The only thing I can think of is I had it originally located on the driver's side engine bay and it got some heat and melted the tube (thought I had it zio tied out of the way good) so I relocated to the jack compartment. I changed the rear diff at 5K and 15K also.