My '86 4Runner leaks from the rear transfer case seal. The oil drips off the tcase flange dust seal, not out around the driveshaft or the 'face' of the flange, so I don't think it's leaking around the splines - although I did not use any sealant on the splines. The tcase flange doesn't have a wear groove under the seal. I've read the other TCase leak threads and they don't seem to address what I'm seeing.
I installed a new seal from Napa, and don't think I destroyed it putting it in, and that didn't affect the leak at all! I guess I can replace the Napa seal with Marlin's super-seal, but would like to understand what's wrong before redoing that work.
The leak is weird - it drips slowly, but constantly, even if the truck hasn't moved for a couple hours. Tcase isn't overfilled - oil level is below the fill plug, it's like something is wicking oil up and past the seal. Does my tcase have the clap? Anybody got any insight into Whiskey Tango Foxtrot is wrong?
