Matching numbers?
alaskan ta is right. it started around 68', but consistency was not highly enforced. 69 fender tags are different to decode than 68's as well.
cboutinduster73- welcome! yes, the engine and trans should be stamped with the last 6 digits of your vin, as well as other #'s. other stuff you need, well, there are lots of places to check into. here are some to start.
www.legendaryautointeriors.com
www.dantesparts.com
www.jacksautoparts.com