As i accelerate and shift it seems like my rear end clunks (like a rough engagement), it only does this through the shifts as i completely let off the clutch. wtf? also, the t-lock seems to lock up when i get on it in a straight line (car gets sideways) but wont lock up if i try to punch it in a sharp corner (it'll just spin the inside tire). I have 3.73s, stock d/s. I've searched and so far i've found possible culprits to be U-joints.. any thoughts