hey guys been a while since ive been on but i got a vn v6 t5 and i did a skid in it and something was making a raquet so i had a look and there was a metal ring with rubber on the inside that looks like it had broken off from just behind the gear box. can anybody tell me what this part is called and what it does? because i took the tailshaft off and took the ring off and put it all back together and she ran fine without it..