Ideally, the S60 is what I would want but that's a pretty hefty chunk of change
The reason that I wanted to look into changing gears is that I have noticed a whine from the gears along with a low roar when booking it down the interstate. There has also been a couple occasions when I heard it pop when in reverse. After looking around some more it could be a carrier bearing issue rather than my gears about to crap themselves. I just figured if I was going to get the bearing replaced I might as well have the gears done at the same time. Although if I can keep it from crapping out on me for a good while I might be able to save enough for the rear, just not anytime soon.