Rear diff leak?

M

MonLand

Active member
I have a decent leak that appears to come from the rear 3rd member.
It was coated in oil due a t-case leak. I (think I) fixed the t-case oils leak (breather tube melted/was closed). But there is still a decent amount of gear oil dripping after a drive. I barely see any oil on the t-case, so either it flies efficiently, or.... it leaks very little.
i have an ARB installed so there is a fitting on top. I have verified that I get no oil coming out the input seal. I don’t see any obvious crack. The oil seems to come from the top but I can’t seem to see from where.
I had to add oil to rear diff so I know it’s loosing some.
Anyway, how would you guys troubleshoot this type of leak? Is there a trick/tip I can use?
 
M

MonLand

Active member
Cleaned up even more the differential and took it for a spin. I think I broke the seal to the axle somehow. So I took it out tonight and resealed it with right stuff/some gasket maker.
this had been installed with a paper gasket, so maybe it was time!?
Now.... looks like I dented the pumpkin pretty good to the point the ring contacted it and made a groove (been running a diff protector for the past 4-5 years, so that’s an old dent).
 
M

MonLand

Active member
Closing this thread:
- resealing the rear diff fixed the leak. I now have a leak-free driveway (not sure if I’ll even get used to that.... I keep looking under it every time I pass by it....)
- hit the rear cover from the inside hoping to push the metal out a bit.... maybe it made a difference, maybe it did not.... no time will tell (at least I don’t think so)
 
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