i just changed my rear differential fluid i don't think its has ever been changed since it has come out of the factory do you guys think there is problem since i had just changed after almost 270,000 miles my g80 still lock and works


All that light brown stuff is foam

 

Not a good sign to see gear oil being aerated like that... But 270K without a change I'm not surprised. Did you change all the other fluids as well?

 

its partly my fault i got it with 225,00 miles and i have barely changed it now i got it in 07 but i have changed a lot of stuff over the years

 

I say, if you notice something weird when you are changing it to make it better. But its still working like it should, You are good to go (maybe I am just trying to be positive LOL)