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Old 02-14-2011, 10:11 PM
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Rear diff pinion seal

99 TJ 2.5L 4" lift on 33 MTs
What causes a rear pinion seal to go bad. Can not driving the jeep for 2 1/2 years cause it to leak oil? That's what the mechanic that installed my new gears and bearings and SEAL told me.

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Old 02-15-2011, 01:34 AM   #2
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Did he put too much diff fluid in there? The vent could be clogged up and oil by passes the seal also tearing it.

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Old 02-15-2011, 11:42 AM
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Quote:
Originally Posted by Mortalis5509
Did he put too much diff fluid in there? The vent could be clogged up and oil by passes the seal also tearing it.
I don't think so, it's a gear and axle shop that specialize in 4x4s. So the cause would not be the seal drying up from non use?
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Old 02-15-2011, 12:43 PM   #4
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Quote:
Originally Posted by 4x4junkie View Post
I don't think so, it's a gear and axle shop that specialize in 4x4s. So the cause would not be the seal drying up from non use?
Possibility. Also take into consideration the amount of miles on the jeep. Also check the vent. If the vent is clogged and that's the way its re-leaving pressure and a simple unclogging of the vent might have you fixed. It's a simple fix if the seal the real problem.
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YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE DUCT TAPE.

IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
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Old 02-15-2011, 10:03 PM
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Quote:
Originally Posted by Mortalis5509

Possibility. Also take into consideration the amount of miles on the jeep. Also check the vent. If the vent is clogged and that's the way its re-leaving pressure and a simple unclogging of the vent might have you fixed. It's a simple fix if the seal the real problem.
I'll check it out Thanks!!
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