While installing my new exhaust, i noticed that on alittle bit of my diff, esp around the plug, theres a dark, thin layer of oil? Is this in any way normal? theres never anything on the ground, just a small spot around the plug. Ideas?

 

When replacing your rear diff fluid do you always use new crush washers?

 

Havnt changed it yet.

 

Wipe the area clean and see if it returns. A slight stain is normal, it is good that there were no drips.

 

Yeah no drips, just a stain... ill try to wipe it up and see what happens.. thanks!

 

new crusher will do the trick and torque to spec