Rear axle leak - JeepForum.com

 
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post #1 of 8 Old 05-30-2012, 01:00 PM Thread Starter
booked101
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Rear axle leak

There appears to be a leak between my driveside axle tube and the diff housing. It isn't dripping and it just wet looking. How do I fix this?

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post #2 of 8 Old 05-30-2012, 01:19 PM
jtackerman28
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Left axle tube seal where the axle goes into the diff, Google/YouTube it and there are lots of videos and or explinations

3.5 re lift, double sheer front tb, 31" wrangler duratecs
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post #3 of 8 Old 05-30-2012, 03:13 PM
KJK
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Also check the fastener that the axle vent tube is attached to. It also holds a brakeline junction block in place. It is located on the driver's side axle tube on top near the diff. If it's loose it can cause a leak there on the tube.

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post #4 of 8 Old 05-30-2012, 05:13 PM
gomes512
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The 35c's axle shaft seals are at the ends of the tube (furthest from pumpkin).

The tubes are held into the pumpkin by three rosette welds. Common problem with 35c's is the welds breaking and allowing the tubes to angle up. Not sure this is your problem without actually looking inside. Since the tubes are oil filled (shaft seals by tires) you'll see gear oil seepage occur if the welds have been broken by to much abuse.

I'd take it apart to see if your internals are still ok.

How much does it drip?
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post #5 of 8 Old 05-30-2012, 06:36 PM
ratmonkey
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if that is indeed coming from around the tube junction, you fix it by buying a new axle. because the only way for that to happen is a bent or spun tube.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #6 of 8 Old 05-30-2012, 07:11 PM
edpmedic
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Put a jack under the diff and has you jack it up have someone by the tube and see if they can see it pivot where it fits into the housing. You really don't need to lift the tires off the ground, so it is safe for someone to be under there. If it is lose you should see movement. And I agree with ratmonkey you need to change it

http://www.jeepforum.com/forum/f13/r...-leak-1309699/

This is a link to the problem I had with the vent that was mentioned above, but I don't think that is your problem. Also if the person under the vehicle puts their hand where it goes into the housing, they might feel movement. Sometimes that is easier then visualization. I'm sure you checked the pinion seal to make sure oil is not being blown to that area.

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post #7 of 8 Old 05-30-2012, 07:53 PM Thread Starter
booked101
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It doesn't drip. I'm going to look in the diff this weekend so I'll check the tube to see if it bent or the welds are broken.

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post #8 of 8 Old 06-12-2017, 12:06 PM
DstroyrOfWrldz
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what was the resolution here? I think I may have the same thing going on with the TJ I just bought, but on the passenger side. No other leaks severe enough to migrate there and someone in the past has tried to repair the "leak" with silicone.

I've got a buddy who's a pretty good welder; instead of disassembling and replacing the rosette welds, could we not square up the tube and weld around the outside of the tube to the housing? I'm not enthusiastic about rebuilding or buying an entire new axle.

Joe
1999 Wrangler Sahara
2005 Wrangler Unlimited (Sold 9/2012)
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