Ok i measured the pulleys with a string and went to advanced auto. Closest thing they had was a 510v5 and a 505v6. Obviously we run a v7 so i had to lose a grove. The 505 is smaller of course and it seems pretty tight so i think im good to go? The only issue is the auto tensioner doesnt have the 2 points lining up saying its tight. Its pretty tight to me! But im guessing they dont line up anymore because ive lost 3 pulleys and re-routed everything. Who knows. If it snaps i hope it doesnt take anything with it.