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Old 01-17-2006, 09:38 PM
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gcmandrake gcmandrake is offline
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Default Bent Axle

Last problem of the evening (I hope),

Both of my knuckles are leaking, again. I've re-packed the bearings on the drivers side once and the passenger side twice. I even rebuilt the entire knuckle on the passenger's side, just to be sure. The leak is much slower than it was before I worked on them, but that might be partly due to the cooler weather. When I had them apart, the birfields seemed in good shape. There was a little wear on the axle where the gasket keeps the diff fluid out, but it seemed acceptable.

Could a bent axle housing be the cause? And how can you tell? I was thinking of replacing the short and long axles just to eliminate the slight groove caused by the gasket, but I dread taking that apart again. Any thoughts would be much appreciated.

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Old 01-17-2006, 09:46 PM
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I can see how a bent axle could cause leaking.. imagining a little runout that widens the ID of the inner axle seal. But only way i'd know to check it would be to pull it out, then put the thing up on V blocks and measure the runout. IIRC, there's a big surface place up where 60wag works where you could actually measure a long side.

But then again, you're not full time 4 so your front axles don't really spin that much, right? Like, maybe they've spun 500 miles since you replaced the seals at the 04WBPP? So I dunno.. they'd have to be really bent to cause a leak so quick. Probably more attributable to the oil & grease mixing because of your grooves. I just bought new axles for the same reason, and will be going in there again fairly soon. HTH..
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Old 01-17-2006, 10:56 PM
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Do you stil have the outer birfield c-clip in place? Your axle shafts might be pushing into the third far enough that the sealing surface is behind the seal.
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Old 01-18-2006, 12:04 AM
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Are you sure the knuckles are shimmed correctly? If the axle isn't aligned very close to the housing/seal bore centerline it will wear seals out quickly.
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