my mates big into his drifting, and he recons it will be ok,

, I might have to give it a go just for a laugh, got a diff for £30 to play with
Chip, why will it kill joints fast? I assume its because they will get twisted loads when the inside wheel drags in tight corners?
what's the best option for a decent diff when I get some cash together?? the 2 I know of under 1k are gripper, quaife atb and I heard bernie is making a kit, but how much is it and whens it ready?