Josiah I have a 7 bolt and im never worried about crank walk reason being that number one I have a late model 99 which means that mitsu suposively actually nitrated the crank. also i dont start my car with the clutch down and i dont sit at a red light with my foot on the clutch either. There are many many reasons why cranks walk includeing the way you drive and its not only with dsms either supras have the same problem. So again I say there are too many variables for someone to decide what the ectual problem is over the internet.