Since titling started recently( aounrd 03) That is probably not the orginsl title. Since it's titled as an 89, We have to assume it is, The guy we bought my dads warrior from thought it was a 97, but when we got home, we re-read the title a few good times and it ended being a 98.
Titles are usually accurate, if their is a vin # you should be aboe to find out by that.