My 360 is due for its cam belts. Last done in Aug 04 at 31,000 kms now on 81,000 kms. Book says change every 50,000 kms or 3 years.

Thing is it had a 70,000 kms service in June 06 so is not due another until 90,000 kms or June 07. So do I get it serviced when having the belts done or not? If yes then where do I stamp the history? Its not a 90,000 kms but its not an annual.