Rear axel breather tube

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JoeyA-261
BSJ Member
Posts: 15
Joined: Tue Feb 26, 2019 8:10 pm
Jeep Year: 2017
Jeep Model: JK Wrangler
Real Name: Joey

Rear axel breather tube

Unread post by JoeyA-261 »

Hey guys,

I was looking over my '17 JKU rear end the other day and noticed that the breather tube is falling into the spring coil. it looks like my options are to loosely zip-tie it to keep it out of the way, or shorten it a couple of inches.

My question is; how much play/extension does it need? I'd like to shorten it (seems the best way to keep it out of the way), but I don't want it to be so short that it pulls off the housing.

Anyone run across this issue?

Thanks in advance,

Joey
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Frank
Frankie BSJ Member
Posts: 4145
Joined: Sun Dec 27, 2009 8:54 am
Jeep Year: 1974
Jeep Model: CJ5

Re: Rear axel breather tube

Unread post by Frank »

Hey Joe . I went to the store and bought a roll of plastic hose. I extended all of mine up into the engine bay and use single in/out gas filters on all . If you cross a river and you had shortened it , water and dirt may enter your axle---- (Bad). Many JK people have said they extended it to go up in the back corner where your tail light goes. A hole in the body ? You really want it to have enough slack not to pull off the diff. If you see there is also a brake line that comes down to the diff. You need about the same slack. Check for the ones on your trans/T-case and front diff as well FjR68
KenCal
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Posts: 519
Joined: Fri Jul 15, 2016 3:35 pm
Jeep Year: 2012
Jeep Model: JK Wrangler
Real Name: Ken Bell

Re: Rear axel breather tube

Unread post by KenCal »

Hi Joe, I extended both front and rear axle breather tubes on my JK. Got transmission hose from Advanced Auto , it's cheap and is not affected by gear oil or such. Ran the front up high into the engine bay and ran the rear into the pass. side behind the tail light. No, you don't have to drill any holes to do that. Just make sure the hose fits tight on the barb off your axle and leave enough slack for flexing. Don't forget to reinstall the breather heads onto the new tubes and secure the tube using the original clips and or some zip ties. They don't prevent water from getting in, just splashing water and dirt. Easy job and will give you piece of mind when you hit those deep puddles. By the way you could also just extend the breather tubes with a hose mender kit, make sure the barbs fit tight. Did that on my buddies JK. :music-rockout:
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