awd... not so awd

[awd-drifter]

Well, that past couple days I've been noticing that my car is oversteering more than usual. It's noticeable that the rear wheels are spinning more than the fronts. At first I thought it was the front axles but they're not leaking or ripped. I haven't really gone out and had a fun time with the car because of this issue. I don't want to make it worse than I think it may be. Does anyone have any ideas to why it could be acting like this? I haven't changed the transfer case or the rear diff fluids yet since I've owned the car. I've only done the trans fluid.