diff leaking
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Elder User
Joined: Jun 2010
Posts: 568
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From: Northern IL
diff leaking
I changed my diff oil back in April and I've been noticing the fill plug and diff cover are leaking. I have refilled it since then but, how do I fix this? I didn't notice the diff cover till this past weekend when I was doing my shocks.
I re sealed the fill plug three times with silicone gasket maker, and twice with the black high temp stuff as well. I should be able to just clean the diff cover mating surfaces and get a real gasket, correct? But that doesn't solve my issue with fill plug. What do I do with that?
I re sealed the fill plug three times with silicone gasket maker, and twice with the black high temp stuff as well. I should be able to just clean the diff cover mating surfaces and get a real gasket, correct? But that doesn't solve my issue with fill plug. What do I do with that?
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
It's a rubber hose that comes out of the brake line junction box on the rear axle. One rubber hose is the rear brake line and the other is the breather. Although if the breather is plugged, the fluid comes out of the axle seals, not the rear cover.
X2 on the teflon tape. Clean the surfaces well and use RTV on the cover. No gasket needed. The stores will sell you one but you don't need it.
X2 on the teflon tape. Clean the surfaces well and use RTV on the cover. No gasket needed. The stores will sell you one but you don't need it.
Posting Guru
Joined: Jul 2009
Posts: 1,069
Likes: 1
From: Toledo, Ohio
I thought the breather was on the axle tube and vented the whole differential. If it was plugged it would create pressure inside the differential that has to vent somewhere which would then create leaks at the seals and/or the cover... I could be mistaken but that is what I have seen before.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
I thought the breather was on the axle tube and vented the whole differential. If it was plugged it would create pressure inside the differential that has to vent somewhere which would then create leaks at the seals and/or the cover... I could be mistaken but that is what I have seen before.
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