most DMV's dont go back that far.and car fax wont help you cause the vin# used is not 13 digits like they use today. I hate to say it but unless you just plain get lucky and stumble on it you wont find it.

I am not sure if Ford's Motor # and V.I.N. were the same in that year,but I am reasonably sure that they were,you might want to check with your local license office,some states will run a search for a small fee,if not stop by a used car lot ,and ask them if they will run a Car - Fax for you,normal charge to do this is $ 25.00. Hope this helps.