now what? almost lost control of the X5

[secretaznsauce]

So this morning I was coming home from work and its was slightly drizzling outside. I am going about 65 on the hwy and all of a sudden the rear end just started to slide. I let up on the gas and it recovered. I slowed down a bit and then got up to about 55 and again teh rear end started to twitch. At taht time i figured maybe its a slick spot or something.

I left the house awhile ago and as soon as i hit around 55 (still raining) the rear tried to swing out again. I got a good 1 or 2 inch left to right slide and now even at slower speeds 35-40 the rear just feels really loose and like its ready to just swing out any moment. any thoughts? Its at home right now. Drove the dodge truck to work