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Old 11-28-2012, 06:25 PM   #1
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How To Extend Breather Hoses with Pictures - Axle & Transfer Case

How do I do this? So I hear this mod is really cheap to do, but I cant find any forums for TJ's. Can someone help me out? Please post pictures. Thanks

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Old 11-28-2012, 06:28 PM   #2
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It is very easy and you can do it for under $25

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Old 11-28-2012, 06:30 PM   #3
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I suppose the question is... How do you extend them and where do you extend them to? I am just looking into this also, we have some pretty deep water in the swamps down here in FL and I want to make sure I dont get water where it isnt supposed to be. I have heard you can extend them to the airbox but how do you get them in there and seal it up really well?
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Old 11-28-2012, 06:32 PM   #4
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It is very easy and you can do it for under $25
I know its cheap, I just don't know how to do this, thats my question
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Old 11-28-2012, 06:38 PM   #5
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Your rear diff breather is located behind the gastank fill trim, its zip tied to the nozzel

The front diff breather is located on the drivers side right against the radiator bolted to the grille

Your t-case breather is a tube with a rattle cap and it is infront of the t-case, it's either hanging down or zip tied up to a wire

Depending on your transmission - All manual trans. vents are located attop the trans. right infront of the shifter. All it is, is a stub with a metal rattle cap on top of it. You need to pull it off with a set of pliers and push a hose over top.
The earlier auto's vent was located in the bell housing, requiring you to pull the tranny to access it. The newer 4-speed auto's either had a vent hose running up the firewall or had a vent like the manuals.

There are several different ways to finish the job: you could relocate every thing to the passenger compartment, bolt it up to the firewall in the engine compartment, drill a hole in the air box and route it there, or you could splice it into the valve cover breather hose.
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Old 11-28-2012, 06:41 PM   #6
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Heres how I ran mine
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Old 11-28-2012, 06:46 PM   #7
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Ahh so just some tube and a couple T's. I think I can manage that. Did you replace the tubes all the way to the diff? and what size tube is it? Also I have the 3spd auto so I prolly will have to get a shop to get at that one huh? I dont think I will ever "drop the tranny" to do it.
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Old 11-28-2012, 06:52 PM   #8
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Quote:
Originally Posted by LilYeller View Post
Ahh so just some tube and a couple T's. I think I can manage that. Did you replace the tubes all the way to the diff? and what size tube is it? Also I have the 3spd auto so I prolly will have to get a shop to get at that one huh? I dont think I will ever "drop the tranny" to do it.
I dont remember the hose size. What I did was take the plastic rattle top piece into ACE and matched it to the right size hose.

No I just added to the original hose, cause it was still in good shape.

Yeah you might want to try to talk a shop into doing it especially if its your DD
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Old 11-28-2012, 07:25 PM   #9
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Heres how I ran mine
Can I see the pics from underneath the Jeep. I have an auto tranny by the way
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Old 11-28-2012, 07:31 PM   #10
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Originally Posted by IWANNAOFFROAD View Post
Can I see the pics from underneath the Jeep. I have an auto tranny by the way
I dont have any pics right now but its pretty simple. Insted of buying new connectors for, between the new hose and the old hose, I pulled the plastic cap off and reused that piece for a fitting. Remember to tape every connection just to be sure there are no leaks.
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Old 11-28-2012, 10:00 PM   #11
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Do the diff breathers really need to be extended?
They are already extended - and higher than any water I'll be driving my Jeep through.

I've extended the breather on the transfer case and relocated (and extended) the breather on my old 3 speed auto, but seriously if you need to have longer breathers on the diffs because you are in water... what? over your hood? I'm guessing you are going to have plenty of other issues to deal with.
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Old 11-28-2012, 10:04 PM   #12
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Quote:
Originally Posted by Wesboy
Do the diff breathers really need to be extended?
They are already extended - and higher than any water I'll be driving my Jeep through.

I've extended the breather on the transfer case and relocated (and extended) the breather on my old 3 speed auto, but seriously if you need to have longer breathers on the diffs because you are in water... what? over your hood? I'm guessing you are going to have plenty of other issues to deal with.
When the "mud" line on you jeep is this high

Attachment 182741

Then yes I prefer to have my breathers above that
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Old 11-28-2012, 10:28 PM   #13
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Originally Posted by Wesboy View Post
Do the diff breathers really need to be extended?
They are already extended - and higher than any water I'll be driving my Jeep through.

I've extended the breather on the transfer case and relocated (and extended) the breather on my old 3 speed auto, but seriously if you need to have longer breathers on the diffs because you are in water... what? over your hood? I'm guessing you are going to have plenty of other issues to deal with.
Can you take a picture of the extended breather hose on the tranny?
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Old 11-28-2012, 10:31 PM   #14
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Quote:
Originally Posted by LilYeller
Ahh so just some tube and a couple T's. I think I can manage that. Did you replace the tubes all the way to the diff? and what size tube is it? Also I have the 3spd auto so I prolly will have to get a shop to get at that one huh? I dont think I will ever "drop the tranny" to do it.
I relocated the tranny mount when I had to replace it the first time I did it like I found on a link here were u pulled the pump housing and drilled a hole in top of the case and put a fitting in, but when it was all put back together it leaked out of the pump housing, cuz there is a paper gasket behind it that u can only get in a rebuild kit. so with the second tranny(the first one wouldn't shift right) I did it like this

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Not very pretty but its effective just tapped the current vent hole and put in a small 90 elbow that I got at work that a brake line screws into and then routed it outside the bellhousing.
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Old 11-28-2012, 10:34 PM   #15
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Originally Posted by 98 tj sport View Post
I relocated the tranny mount when I had to replace it the first time I did it like I found on a link here were u pulled the pump housing and drilled a hole in top of the case and put a fitting in, but when it was all put back together it leaked out of the pump housing, cuz there is a paper gasket behind it that u can only get in a rebuild kit. so with the second tranny(the first one wouldn't shift right) I did it like this

Attachment 182750



Attachment 182752

Not very pretty but its effective just tapped the current vent hole and put in a small 90 elbow that I got at work that a brake line screws into and then routed it outside the bellhousing.

So I have to take my tranny completely out of my Jeep?
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Old 11-28-2012, 10:38 PM   #16
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Quote:
Originally Posted by IWANNAOFFROAD

So I have to take my tranny completely out of my Jeep?
To relocate the transmission vent.yes to do the rest. No. But doing one with out the other is kinda useless in my opinion.
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Old 11-28-2012, 10:42 PM   #17
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To relocate the transmission vent.yes to do the rest. No. But doing one with out the other is kinda useless in my opinion.
Yeah I agree. I am a noob when it comes to taking stuff apart on my jeep. I just learned how to take apart my diffs and clean them. Is taking the transmission off hard?
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Old 11-28-2012, 10:46 PM   #18
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Originally Posted by IWANNAOFFROAD

Yeah I agree. I am a noob when it comes to taking stuff apart on my jeep. I just learned how to take apart my diffs and clean them. Is taking the transmission off hard?
Um its not to bad, drop the skid plate, exhaust, remove the transfercase, drain the fluid, remove the tranny, might as well change the seals while u got it out to, hardest part is gettin the dang tourqe converter to seat back in, at least it was on mine, first time we had it out in about and hour and a half, and back n in 2 but the third time( cuz I got a bad one the first time) we had it out and back in in about 2 hours.
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Old 11-28-2012, 11:42 PM   #19
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Quote:
Originally Posted by IWANNAOFFROAD View Post
So I have to take my tranny completely out of my Jeep?
Quote:
Originally Posted by 98 tj sport View Post
To relocate the transmission vent.yes
Actually NO, your 98 has a 32rh which is the one that has the breather in the bellhousing.

The one that IWANNAOFFROAD has in his 06 is a 42rle and it has an external vent so you dont have to take off the trans to re-locate it. But the 42rle has a computer mounted under the hood, in the fender. If it gets soaked you could be screw'd Idk how water proof it is compared to the ecu.
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Old 11-29-2012, 01:18 AM   #20
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Originally Posted by IWANNAOFFROAD View Post
Can you take a picture of the extended breather hose on the tranny?
Looking at your profile, you have an '06?
My understanding is your model already has an extended breather which runs up to the dip stick for the transmission.

Here's a couple of pics of the breather on my 3 speed, if it helps anyone.

I've only got a couple of pics the guys at the shop took when they did the mod.

This is the old vent hole plugged
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Hole drilled and nipple added to housing
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Tranny back in the vehicle - blue extended breather - goes up to fire wall near brake booster.
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Old 11-29-2012, 01:22 AM   #21
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Originally Posted by CMA_Rider View Post
When the "mud" line on you jeep is this high

Attachment 182741

Then yes I prefer to have my breathers above that
I bet there's a good story behind that mud line

I see your point, but the stock extended diff breathers are plenty high for me.
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Old 11-29-2012, 01:43 AM   #22
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I bet there's a good story behind that mud line

I see your point, but the stock extended diff breathers are plenty high for me.
Yep, a day of mudding without any problems = feeling invincible on the way out

I hit a untested mud hole in 2wd and just sunk. It was red clay and it had the consistency of half melted ice cream.

Man I wish I had the pic's of me in the hole. Needless to say my friends gave me a hard time for about a month after.
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Old 11-29-2012, 03:49 PM   #23
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Thanks guys
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Old 11-29-2012, 04:03 PM   #24
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Originally Posted by CMA_Rider

Actually NO, your 98 has a 32rh which is the one that has the breather in the bellhousing.

The one that IWANNAOFFROAD has in his 06 is a 42rle and it has an external vent so you dont have to take off the trans to re-locate it. But the 42rle has a computer mounted under the hood, in the fender. If it gets soaked you could be screw'd Idk how water proof it is compared to the ecu.
Sorry ur correct I thought he said he had a 3 speed (I'm on the mobile app so it doesn't show signatures) but correct the procedure I'm descriping is for the 32rh
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Old 01-01-2013, 01:35 AM   #25
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Actually NO, your 98 has a 32rh which is the one that has the breather in the bellhousing.

The one that IWANNAOFFROAD has in his 06 is a 42rle and it has an external vent so you dont have to take off the trans to re-locate it. But the 42rle has a computer mounted under the hood, in the fender. If it gets soaked you could be screw'd Idk how water proof it is compared to the ecu.
That computer mounted under the hood. Are you referring to the fuse box?
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Old 01-01-2013, 11:49 AM   #26
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That computer mounted under the hood. Are you referring to the fuse box?
No, its mounted on the drivers side fender right next to the horn, the fusebox is on the passenger side fender directly in front of the battery.

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