I have a 1986 C Reg 90 and I cant find the chassis number on the chassis. I have looked between the steering box bolts and it is not there. Am I looking in the right place? It is so old I guess it could have a different chassis. Can you tell me exactly where to look for it if it is a 90 chassis, if it is an older or newer one where it could be? It has been waxolied so exact locations would be helpful as I will have to scrape off waxoil!