Hard to describe but it seems like the rear is gonna come out. It only happens when real cold, and when taking a turn. Then coming out of the turn, it slows down and goes away, dosen't do it when going straight, i have to start it off in a turn. At first i thought being as its so cold, the fluid in the rear is real thick and maybe the clutches in the limited slip where chattering. But it happened again today and as soon as i push the clutch in, it immediatly goes away.

 

I've heard of this happening when people in the north use 75w140 differential fluid rather than 85w90.