67-69 Barracuda differences

No marker lights on 1967.
Round marker lights on 1968.
Rectangular marker lights on 1969.
Back Up lights in rear valance in 1967 and 1969.
Back up lights in tail light assembly in 1968.
Grilles are sort of alike in 1967 and 1968. 1967 is a rectangler metal insert and 1968 is a plastic finned insert.
Grilles are totally different in 1969.
Hood is the same on 1967 and 1968 execpt different inserts.
Hood totally different on 1969.