It's time to fit a diff to improve traction. I was originally thinking of Quaife's torque biasing diff, but spoke to someone recently who spoke highly of the Tran-X plate diff. Has anyone here come across this diff and if so is it any good for fast road/some track? Also it's available in either 25/35 ft lb or 65/75 ft lb torque static preload and different ramp angles (45/45, 35/90, 45/90 55/90). Can someone please explain these terms and what they actually mean in terms of handling??