I have a 3.73 limited slip rearend. When i was trying to take off from gravel yesterday, only the right rear wheel spun. What happened to the Limited Slip? It can't be that poor of a limited slip unit is it? It only has 50K on her. My brothers 98 chevy with 80K still spins both rear tires. Opinions or suggestions?

Would a fluid change with friction modifier help? Is there an adjustment on the clutches in there?

Thanks for any help.