Driveline components damaged or just paranoid??

[DsmRacing]

I'm breaking loose in 1st 2nd and 3rd gear if I get on the gas at all. It is only the rear, and it seems that it might only be 1 wheel because I'm getting sideways everytime it happens. I also heard a funny noise coming back from the track, sounded like a warped rotor but no shaking, possible wheel hub bearing, or possibly driveline component. I don't hear the noise anymore. I drained the rear differential, no metal shavings or anything coming out, but it was like sludge. I put in redline heavy weight oil that RRE recommends. The transmission and transfer case has fresh fluids, about 1k miles on them (redline in xfer, and trans= B&M synchromesh)

Another weird thing that happened, I was pulling the car into my garage which requires going up an incline. I either got high sided, because the car would not go anywhere. Gave it some more gas, hear a tire chirp and I made it into the garage. This has never happened before for the past year of owning the car.

Anyhow, how can I check these components out with as little removal as possible, I really don't have time, and my wife can't find out, or I will never hear the end of it ( she told me I would break something, and I never want to admit to this one!)

Also, if anyone understands me and wants to check it out to see what it is let me know, I'll buy lunch or something.

Thanks again guys,
Chad
"breaking the rear loose through all gears in a AWD"