Hey, my brothers rear diff seal is leaking at the axle. He is running Gorillas on a SoCal Fab 6" LT kit. I know the CVs on Gorillas are different than stock or Summers Bros axles but does anyone know if the seal is special? I don't see why it would be but my brother wants to know before he tears into it with stock seals on hand for replacements. Also, are there any tricks to replacing the seal. He read it can be a bitch with the Gorilla CVs.