I have a 1982 308 GTSi Ferrari and the chrome on the wheel bolts is poor. The bolts are not really consistent in length which indicates to me that they have been trimmed down from longer bolts. Does someone have a chart of proper lengths for Ferrari wheel bolts? I can easily determine what length they can be with a depth guage but it would be nice to know what they should be. I do know the fronts are longer than the rears but is this typical of Ferrari?