Rear axel leakin

[03MUSCLE]

I recently noticed a spot on the driveway about the size of a quarter on the drivers side where the back axel is. Is this normal?

 

[vortecd]

Do some searching on the site. It is the vent on the axle tube

 

[03MUSCLE]

Thanks , I did after i posted . I know now its just the vent tube nothing to really worry about .