leaky centre seal

[topend yobbo]

The seal between my 5 speed manual gearbox and transfer is leaking.
Im fairly sure the auto has the same setup .
I know its dodgy [my middle name] but has anyone used some seal swell type additive to stop leak and work?
I will fix it at some later stage but need quick fix for now.
About one or two drips per day at the moment.Heres hoping for some good news.

 

[Aussie cruiser]

If it's leaking from one box to the other you can get a bypass hose kit that lets the oil return. If it's leaking out and dripping you got nothing to lose by trying one of the stop leak additives.

 

[Mickldo]

Most people just install the by pass hose and forget about the problem. I think the problem is caused by a pressure difference between the boxes. Most likely blocked breathers. Top end is yours a part time 4wd or constant 4wd model? My constant has factory extended breathers, I can't remember if the part timers get the breathers or not.