When I had my ZF rebuilt I noticed I had a few bolts on the bottom of the transaxle that were weeping after about two weeks of absolutely no leaks. I was given the option by the rebuilder of sending the transaxle back for warranty or trying to fix the issue myself. Since my transaxle was already in the car I thought I would try the fix.
I was instructed to remove each bolt individually and clean them with brake cleaner, including the hole, and then apply RTV and retorque the bolt.
It has been a couple of years now and all is well.
Devin
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