I have a bit of weeping from my front diff seals, so I was going to add a bit of Lucas Stop Leak to the fluid to help the seals do their work... I suspect the seals leaked having the old vent cap in place but that is remedied now. What my question is, if I have the locking rear diff., what will adding this stop leak to it do to the clutches/friction plates that are in there? Does anyone know if it will interfere with the friction modifier? Thanx...

 

If it's just weeping a little bit, I wouldn't add that stuff. Not worth the risk IMHO.