I was driving in the rain the other day and the rear started to spin (had traction control off) as soon as it started spinning it started hopping bad so I immediately let off the gas. When I did there was a weird buzzing sort of sound from under the car. Now when I'm sitting idling in neutral I have a weird sort of humm/buzz but as soon as I push in the clutch it goes away. I can sort of hear it while driving too but only at or around 2000 rpms (damn SLP exhaust is to loud) could the wheel hop I experienced for a brief moment have toasted my pilot bearing or maybe something else?