I think my LSD is taking a crap
is there any way to fix this, or is it just done for? what do I need to buy to get the problem fixed? I noticed that most aftermarket diffs are pretty expensive and require a shorter gear than what I am running.
I have a 10 bolt with 2.73s

Also, how much would my gas mileage get hurt in my A4 if i went to 3.23s or 3.42s
I drive on the highway a lot and don't want to totally kill my mileage.

