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11-20-2009, 08:52 AM
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#1
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Member
Join Date: Sep 2009
Location: St. Paul, MN
Posts: 429
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I don't know a whole lot about mechanics so forgive me if this is a noob question. 
I recently went mudding with some buddies in my stock zj. It was recommended to me that I check my differential fluids to make sure water hadn't gotten in. I'm wondering how water would get in, and also what I can do to keep it out if this is going to be an issue.
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11-20-2009, 08:56 AM
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#2
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Registered User
Join Date: Jun 2008
Location: Crystal Lake, IL
Posts: 3,431
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The diff cover might have a leak, if your vent tube has falen off, water will easily find it's way in, if the seals are bad, that could also let water in, the diff plug might let a small amount in, etc etc. You can't really keep it out, just make sure after everytime you go anywhere there is high water or mud, to check the diffs after.
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11-20-2009, 08:56 AM
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#3
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Web Wheeler
Join Date: Sep 2007
Location: Owens Cross Roads, AL
Posts: 3,662
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Water can leak in through the seals, its just something that happens. There is not much you can do about it. Just change your fluid and you'll be fine.
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11-20-2009, 08:57 AM
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#4
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Registered User
Join Date: Feb 2009
Location: Sonoita, Arizona
Posts: 2,095
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When a diff is hot and you put it in cold water it will draw water in as it cools, even if all seals are good.
__________________
95' Jeep Grand Cherokee Laredo, 148k, 5.2, NP242, 46RH, 4" RC lift, all new adjustable ca's(2 IRO front uppers and the rest RC adjustables), nitro shocks, JKS TB's, Jet Chip, Dynamax cat back, Magnaflow cat, GTP hood vents. 31" Pro Comps with Rock Krawler "D"s. Westin brush/grill guard with Hella 500s, 411's, Solid diff covers, detroit locker rear, power lock in front, SYE and Tom Wood's front/rear shafts, RE discos, BPE's, d-rings front and back, factory tc and rad skid, hitch, Sliders next.
03' Jeep Grand Cherokee Laredo, (wifes Jeep) 99k, 4.7 5 speed auto, K&N, KYB shocks, drilled-slotted rotors, All the toys.
2000' Ford Superduty, F250, 7.3, 198K, 37's, too much to list.
Built Not Bought #257
Parts for sale d30 and d35 parts http://www.jeepforum.com/forum/f126/...-parts-1004499
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11-20-2009, 09:18 AM
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#5
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Member
Join Date: Sep 2009
Location: St. Paul, MN
Posts: 429
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Quote:
Originally Posted by gatorayde
The diff cover might have a leak, if your vent tube has falen off, water will easily find it's way in, if the seals are bad, that could also let water in, the diff plug might let a small amount in, etc etc. You can't really keep it out, just make sure after everytime you go anywhere there is high water or mud, to check the diffs after.
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Thanks for the replies guys. I'm learning as I go. B)
Where can I find the vent tube to take a look at the cover? Also, is this an issue with the tc and trans as well?
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11-20-2009, 10:03 AM
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#6
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Registered User
Join Date: Feb 2009
Location: Sonoita, Arizona
Posts: 2,095
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Tranny, TC ect...........
__________________
95' Jeep Grand Cherokee Laredo, 148k, 5.2, NP242, 46RH, 4" RC lift, all new adjustable ca's(2 IRO front uppers and the rest RC adjustables), nitro shocks, JKS TB's, Jet Chip, Dynamax cat back, Magnaflow cat, GTP hood vents. 31" Pro Comps with Rock Krawler "D"s. Westin brush/grill guard with Hella 500s, 411's, Solid diff covers, detroit locker rear, power lock in front, SYE and Tom Wood's front/rear shafts, RE discos, BPE's, d-rings front and back, factory tc and rad skid, hitch, Sliders next.
03' Jeep Grand Cherokee Laredo, (wifes Jeep) 99k, 4.7 5 speed auto, K&N, KYB shocks, drilled-slotted rotors, All the toys.
2000' Ford Superduty, F250, 7.3, 198K, 37's, too much to list.
Built Not Bought #257
Parts for sale d30 and d35 parts http://www.jeepforum.com/forum/f126/...-parts-1004499
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Differentials question
