hi all it sounds like my xr8's diff is on its way out, it has a 3.45 lsd diff, what would be the best way to go, should i put another one from an xr8 3.45 lsd, or are there other ones that will fit, and if anyone out there that might have one for sale, also is it easier to just change the diff centre?

could just re-condition the center.. to brand new.. what style of driving you do? do you race at all? or looking at economy? if so stick with the same.. but this could be a great excuse to go 3.7's..