Rear Differential Breather Mod For Dummies

Nice write up. I like that you ran this up into the engine bay. In a couple of photos it's hard to tell which of the several black tubes is the breather tube.

If you ran this over the heat shields you should check the tube again soon and periodically. Those heat shields are for the cat's and exhaust. The shields get hot too.

Thanks again for posting this.

Thanks I'll certainly check. I made sure none were touching but something to keep checking and be mindful of.
 
Final Thoughts:
This was truly a plug and play mod using the ARB kit. It is a great beginner mod, and I can honestly say I was proud that I completed something on “My Truck” without an installer/dealer etc. I am not a young kid (have two children and been teaching middle school Earth Science and Physics for the past 12 years), and I have life experience (traveled cross country twice, played Division 1 collegiate baseball, coached and scouted in most parts of the country) but this was a first for me and it really does give a sense of accomplishment. Thanks to all of you mechanically inclined on this forum who keep giving up information and help to those of us who are not as experienced with vehicles yet.

The addiction has officially taken hold!

Nice first mod [MENTION=120701]Cymon[/MENTION] !

South Florida gets as much rain as we get here in LA... drove thru one of the worst rainstorms between Boca and Miami a couple of yrs. ago.... :D

Thanks for the Kudo's, and yes there are some helpful members here.
Questions... hit us up, we'll try to give answers!

BTW, there is no cure for the addiction except opening your wallet and putting on a smile!
 
Nice first mod [MENTION=120701]Cymon[/MENTION] !

South Florida gets as much rain as we get here in LA... drove thru one of the worst rainstorms between Boca and Miami a couple of yrs. ago.... :D

Thanks for the Kudo's, and yes there are some helpful members here.
Questions... hit us up, we'll try to give answers!

BTW, there is no cure for the addiction except opening your wallet and putting on a smile!

Yeah, sometimes the rain here is rediculous. Growing up in Maryland we would get a good number of storms and Nor'easters and hurricane/tropical storm remenants with some flooding, but after living through the drought in California for 3 years before moving here the amount of rain was a shock to the system.
 
Rain today

Yeah, sometimes the rain here is rediculous. Growing up in Maryland we would get a good number of storms and Nor'easters and hurricane/tropical storm remenants with some flooding, but after living through the drought in California for 3 years before moving here the amount of rain was a shock to the system.

On Friday I was looking at a map of Orlando, Florida regarding a business trip I need to take. There was almost more open water than land. :jump:

Its raining here this weekend in So Cal. The first rain we've had in a month. And this is the middle of our short rainy season. This year is better than the last 3 or 4 years of drought.

Enjoy your rain. :rain:
 
No matter where you live, even in the desert, you're going to get into water crossings. Everybody should do this. Great post.
 
[MENTION=120701]Cymon[/MENTION] Very nice write up!
Thanks too for the mention! That's the great part that works about this forum. That is that as people write things up others can learn and even build on it and post their own ideas to add.

I used the tubing provided by the ARB kit just at about 6" at the very end to insert it into their breather manifold under the hood. Up here in MD I felt that the cold winters and humid summers would eventually crack the ARB tubing so I used the 1/2" fuel line hose for the long runs underneath the truck.

Congratulations on the new 4Runner! Now go get some scratches and mud underneath! your rig looks too clean down there! lol!
 
Step 4:
Insert Breather Line into ARB fitting. Before I did this I made sure that there was an extra coil of slack before inserting the line into the ARB Breather. This allows for suspension travel (I still have not used any zip ties yet). The line pushes directly into the fitting and seals itself. Once inserted it is locked in (YOU CAN NOT PULL THE LINE BACK OUT AT THIS POINT SO BE SURE YOU”RE READY TO INSERT).
you can pull it out any time: just push in the collet and pull out the tubing. it's a John Guest fitting.
 
Great/weird timing. I just ordered the ARB breather kit this morning and was hoping to find a thread here for this kit. Great job! Question though, is there enough hose for two runs into the engine bay? I have a TE so there's a breather on the locker. Do I need to buy extra hose, or is it possible to T into the same line going forward to the ARB breather? I know the ARB breather has additional ports to use but if I can get away with running just one hose, I'd rather go that route I'm thinking.
 
Great/weird timing. I just ordered the ARB breather kit this morning and was hoping to find a thread here for this kit. Great job! Question though, is there enough hose for two runs into the engine bay? I have a TE so there's a breather on the locker. Do I need to buy extra hose, or is it possible to T into the same line going forward to the ARB breather? I know the ARB breather has additional ports to use but if I can get away with running just one hose, I'd rather go that route I'm thinking.
there's enough tubing to run two separate lines to the engine bay (routing it along the driver side frame rail, anyway). some folks do use a t-connector to tie the e-locker into the same line, as you described.
 
Great/weird timing. I just ordered the ARB breather kit this morning and was hoping to find a thread here for this kit. Great job! Question though, is there enough hose for two runs into the engine bay? I have a TE so there's a breather on the locker. Do I need to buy extra hose, or is it possible to T into the same line going forward to the ARB breather? I know the ARB breather has additional ports to use but if I can get away with running just one hose, I'd rather go that route I'm thinking.

I can't think of a way to "T" the two together with what is only in the kit. I think you should have enough hose to run both but I measure the total amount of hose (I'm pretty sure it's 40') would dry-run the hose and see how much extra you have just to be sure. I can try and measure how much hose I have remaining in the morning but I also left about an extra foot of slack in the engine bay as a just in case. Since the two differentials are near one another you could essentially just run the two lines together once you get over the rear axle and up to the fuel/electrical lines. That would probably be the way I would do it if I had a rear locker.

Edit: Only 8m or ~ 26' of tubing come in the box.
 
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Looks great [MENTION=120701]Cymon[/MENTION]! I am very glad that I could help you out with the write up, it looks like you did a good job with everything. I really like that ARB kit, and in hind sight it would have been easier. But you live, and learn. Added benefit was that because mine took longer, I was able to squeeze a few more brews in there :dancin:
 
One line to engine bay

... I have a TE so there's a breather on the locker. Do I need to buy extra hose, or is it possible to T into the same line going forward to the ARB breather? I know the ARB breather has additional ports to use but if I can get away with running just one hose, I'd rather go that route I'm thinking.

Yes, install a T connector. And I like what Boyds4Runner said above about using fuel line instead. I think he meant 1/4" inside diameter fuel line, not 1/2" fuel line. Even at $1/foot it's worth it for the extra heavy duty tube. See my post on page 1 of this thread for a link to my diff & E-Locker mod thread for photos of the parts I used and where I put the T connector.

I like the location of the ARB breather filter in the engine bay over the Toyota part I used in the gas cap location.
 
Great/weird timing. I just ordered the ARB breather kit this morning and was hoping to find a thread here for this kit. Great job! Question though, is there enough hose for two runs into the engine bay? I have a TE so there's a breather on the locker. Do I need to buy extra hose, or is it possible to T into the same line going forward to the ARB breather? I know the ARB breather has additional ports to use but if I can get away with running just one hose, I'd rather go that route I'm thinking.

I measured this morning and had 11' of tubing left. It only came with 8m or 26'. Not enough to run two breathers front to back, at least not the routing I took with the slack I left. You could probably make it work but it would be tight.
 
Nice write up. Can't believe I still have yet to do this. ARB gives you enough line to run front to back?

Yes, definitely for one breather, stretching it with two. 8 meters or 26' come in the box, I had 11' left over and that was using a generous amount of tubing for suspension travel and about an extra 1' in the engine bay in case I need to extend the line in the future.
 
I think he meant 1/4" inside diameter fuel line, not 1/2" fuel line. Even at $1/foot it's worth it for the extra heavy duty tube.

Gonna tackle this within the next couple of weeks myself. I haven't had hands on the ARB kit, but for those that have, realistically is it worth it to buy both the kit and extra heavier-duty tubing / hose? I'm all about doing this the right / most durable way, I'm just thinking about the fact that with heavier duty hose there would be at least one more zip tie or hose clamp connection to possibly come loose. Thoughts?

[MENTION=120701]Cymon[/MENTION] [MENTION=103267]Saker[/MENTION] [MENTION=3442]Boyds4Runner[/MENTION]
 
Gonna tackle this within the next couple of weeks myself. I haven't had hands on the ARB kit, but for those that have, realistically is it worth it to buy both the kit and extra heavier-duty tubing / hose? I'm all about doing this the right / most durable way, I'm just thinking about the fact that with heavier duty hose there would be at least one more zip tie or hose clamp connection to possibly come loose. Thoughts?

[MENTION=120701]Cymon[/MENTION] [MENTION=103267]Saker[/MENTION] [MENTION=3442]Boyds4Runner[/MENTION]

The hose seems pretty durable. It's thick walled but not as plyable as some of the rubber fuel hose. It's made by ARB, which a reputable off road/overland company, so I don't know why they would put their name on it if it wouldn't hold up. That was my reasoning for the kit at least.
 
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