I'm the 3rd owner of this 69 Grand Prix J with a XF/428. drivetrain is PR code TH400 & 3.23 Posi rearend. It's one of the first off the assembly line and has alot of quirks like writing on panels and changing parts writing everywhere with workers initials. It has a gold dash that was painted dark green for some reason. Maby to get it down the assembly line faster.