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Old 12-06-2009, 03:45 PM   #1
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couple of rear end ?'s

I had a post ealier about my diff breather hose leaking and got some help from some people on here and came to a possibilty of water in my rear end. What damage would this cause because I flushed both pumpkins last year and it hasn't leaked until now, I have done a moderate amount of offraoding went to some parks and just last weekend went through alot of water and mud holes, but I don't see how water would get into my diff I didn't get deep enough for my breather to get submerged, I don't know though wierder things have happened to my Jeep, what are your thoughts, thanks

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Old 12-06-2009, 04:27 PM   #2
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I had a post ealier about my diff breather hose leaking and got some help from some people on here and came to a possibilty of water in my rear end. What damage would this cause because I flushed both pumpkins last year and it hasn't leaked until now, I have done a moderate amount of offraoding went to some parks and just last weekend went through alot of water and mud holes, but I don't see how water would get into my diff I didn't get deep enough for my breather to get submerged, I don't know though wierder things have happened to my Jeep, what are your thoughts, thanks
If it's been a year and you've been doing a lot of offroading especially going thru water crossings, etc. I'd go ahead and pull the diff covers, inspect everything, and refill. It' not all that expensive or difficult and it sounds like it would eliminate the concern and give you a chance just to give everything a once over. If you'd just flushed them, I could see not wanting to go thru the hassle, but if it's been a while, I'd just do it vs. worry about it. Just my .02.

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Old 12-06-2009, 09:24 PM   #3
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when you do check your diff, all you do is take off the lug nuts with a bucket underneath to catch the oil right?

Then you take out all the fluid, put the cover back on and refill through the rubber gasket?
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Old 12-06-2009, 10:22 PM   #4
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Yea pull all the bolts out except the top one. Loosen it, So your not wearing all the gear lube. With the top bolt loose hit the actual cover a few times with a hammer. This will make it loose and then peel it off slowly with the top bolt still in. Then once 99 percent of the oil is out pull the top bolt inspect then put the cover back on. (clean surface re-rtv it) Then tighten the cover back up. Fill it up thru the rubber plug. Done!
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Old 12-06-2009, 10:26 PM   #5
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wearing the gear lube...as in splattering all over me?

Also what is re-rtv it?
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Old 12-06-2009, 11:11 PM   #6
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you need to peel the old rtv off then put new RTV on the diff cover. That is what I meant about re-rtv.
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Isn't the JK just a rebodied PT Cruiser?!

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Just a few more inches Red. You can take it.


If you haven't gotten more out of the insurance company than you deserve, then you haven't screwed them nearly as much as they have been screwing you for the past xx years.
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Old 12-07-2009, 12:36 AM   #7
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Here you go bud a step by step with PIC"S!!!.

Differential Service

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Old 12-07-2009, 12:46 AM   #8
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yea I always do this, I always ask a bunch of questions but forget to look it up myself with all these writeups. Thanks again
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Old 12-07-2009, 12:50 AM   #9
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No worries bud. If you still have any questions let us know.
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Old 12-07-2009, 12:56 AM   #10
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It's a really simple job that anyone can and should do themselves, especially considering the prices the places will charge you. Be sure to inspect everything while you're in there, clean off the magnets if you have them on your plugs and make sure you don't see any metal shavings that don't look good. Do yourself a favor and invest in a lubelocker . . . scraping RTV sucks so do it once do it good and slap a lubelocker gasket on there.
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Old 12-07-2009, 01:07 AM   #11
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lubelocker gasket, ill look into that. is it kinda like a double sided adhesive?
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Old 12-07-2009, 10:04 AM   #12
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lubelocker gasket, ill look into that. is it kinda like a double sided adhesive?
It's basically a reusable gasket . . . not adhesive, but has some type of gasket material on both sides . . . I haven't pulled my cover since installing mine, but I've been told they hold up well and can be reused several times and still not leak. They run about 15 bucks, but are worth every penny in my book.

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