Does anyone know the Diameter of a 1990 300zx TT steering wheel. My car is in the shop getting painted and I am trying to order a racing steering wheel so I can have stuff needed get my car ready for the show when it gets out. The one I am looking at is from what they say 350mm, what ever that converts to in inches. I just want to get the size of the stock one to see if its around the same size or a little smaller. Thanks