the grill shown is a 39, since there is no v8 at the top of the center. It also has the 39 hood latch on it...the 38 is a bit more art-deco and is not smooth on top. The really quick ways to make sure the front clip was not changed out is to see if the windshield regulator handle comes out of the top of the dash (39) instead of the front (38)or look at the inside of the doors....if the doors have a metal inside panel instead of a fabric covering, it is 39. The 38 had an ashtray in the dash as someone else mentioned, but those could be added to a 39...changing out the doors, dash rail, hood latch, and grill would be less likely.