I recently did a transmission gear oil change to valvoline 70w90 and pennzoil sychromesh (bad spelling ).. anyways, the car felt smoother and gear change was slick..

One night I went on a onramp that had a really curvy angle. I down shifted into 2nd and let it ride until I was actually on the freeway.. My car was at a nascar angle if u know what I mean.. (the car was turning and slanted) While in this position, I heard the gears engaging.. I have NEVER in my life heard the sound.. It kind of scared me as I gas on it a little bit to confirm it was my gears.. and it was.. The sound went by faster as the car sped up.

My question is, is this normal? I tried to duplicate the sound going on a offramp on 2nd and I didn't hear it anymore.. any help?

How does it sound like? If you have a wooden desk for your personal pc.. scratch it with your finger nails.. It sounds like that.

car : 06 wrx
mileage: 25k