All A bodies head liner the same?

Sounds like you're talking about the barracuda. The barracuda was 1964-1969 (A body platform with the 64-66 being the early A body and the 67-69 later A). The Barracuda switched to the E body platform from 1970-1974.
Dusters are all A body platform 1970-1976. 1970-72 look the same (72 had a one year only tail lights and the marker light purtude from the body) and are a SBP (64-72). 73 had a facelift and started switching to the BBP. My avatar is of a 1970-1972 duster style but as a Sharktooth grill from a 71-72 340 Duster.