Rear End Question..??

[MetalMilitia]

I recently bought a detroit locker and am not pleased at all with the difference, i mean it launches straight as an arrow, but it makes a hellacious noise when turning, is there something i can adjust to change the sensitivity-for more road oriented use.. Also, The backlash is correct, but there is excessive play in the differential that makes it really hard to drive. Whenever the road gets a little bumpy or the load is taken off the rear, the car starts to buck.. any ideas..?

thanx much