Reading through the Dave Wise reference manual, Restoration and Judging Guidelines, he mentions that the ebody rear license plate bracket was a one-year only part (P/N 3445763) used only in 1970. According to the manual, the 1970 bracket had both the left and right sides of the bracket turned "up" along the sides of the license plate. Guessing this lead to finger cuts, etc., the bracket was redesigned for the 1971 - 1974 years where the sides of the bracket were turned "down" toward the tail...
AAR - T/A Rear License Plate Bracket
