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Old 11-25-2010, 06:24 PM   #1
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Some questions about new gear break in period?

I just got my jeep back a couple of days ago from geting 4.56 gears and arb lockers put in front and rear. I have been noticing some oil underneath the Dana 30. So I took a look under their today and their is gear oil thrown everywhere. When looking to try to find the problem it looks like is is coming out of a overflow hose that runs up the side of the radiator. This is not supposed to happen right? Also when ever I get done driving I can hear the front and rear diff oil boiling. Please help me out just spent so much money and worried.

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Old 11-25-2010, 06:44 PM   #2
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I'm not an expert, but I've been around a lot of equipment. Leaking oil is bad, really, hot isn't the end of the world, but boiling oil is unacceptable. Take it back. Good luck.

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Old 11-25-2010, 07:06 PM   #3
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Something is creating way too much heat. Not your fault, bad install, take it back.
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Old 11-25-2010, 07:07 PM   #4
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Yep - not sure what's going on - but it certainly doesn't sound normal. When I got my new gears and TruTracs I had to drive it for about 500 highway miles before any hard wheeling - but I had no visible oil and temps seemed fine.

It almost sounds overfilled, but i'm no expert. I agree with ^ take it back.
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Old 11-25-2010, 07:08 PM   #5
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Take it back to the installer. Something wasn't set right.
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Old 11-25-2010, 07:08 PM   #6
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I doubt it's heat, the installer probably didn't know about the need to make a small internal modification to prevent that from happening when installing ARB lockers. I don't recall what the mod is but I would call ARB on Monday to get the info. This is why ARB lockers should only be installed by those who have a lot of experience actually installing ARB lockers... not all are up on what is needed to get an ARB properly installed.
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Old 11-25-2010, 07:16 PM   #7
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Thanks for all the feedback. Do you guys think it's safe
to drive without tearing anything up until Monday? It's my only vehicle and have to work all weekend, since I'm in retail " yea black friday" lol. Their is only two shops here in amarillo and both I had heard good things about. Did not think their would be a issue but it dnt look like that is the case.
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Old 11-25-2010, 07:24 PM   #8
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I'd drive it till Monday when you can call ARB.
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Old 11-25-2010, 07:27 PM   #9
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Thanks for your input jerry and everyone else.
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Old 11-25-2010, 07:31 PM   #10
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Safe? I don't know. What do you think the shop would say? Are you usually lucky? I've taken chances in different ways all my life. I don't always win
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Old 11-25-2010, 07:39 PM   #11
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Here you go, I found the information on the modification that is needed which causes the oil to back up the vent tube. ARB Guys.....woes.....input needed.....

The modification needed is to enlarge the axle's oil drainage channels, a pretty simple mod. Any competent ARB installer should have already known about the mod, it's in ARB's directions and tech bulletins sent out by ARB to their installers.

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