jbl-1985

So there is a very slow leak on the differential, specifically, the bottom of the diff is "greasy". Clean it off and it gets the same way in a month or so.

Is there a sealant additive that anyone can recommend, or not? Not sure if it's a good idea to put anything in the trans fluid or not...never had to consider it.

Anyone had to add any additives to their trans fluid for a slow leak?