8.25 Gears

I have a 8.25 rear end and just discovered it has a bad pinion bearing. It currently has 2.71 gears, open diff, something I was planning on changing when I got the resources to, but now this bearing is going out if I'm taking it apart to change the bearing I might as well go ahead give it some better gears. Not looking for anything in particular, just anything in good shape, the higher the ratio the better. Bonus points if it's a locker.