Not so fast: The big frame changes took place between '62 and '63.
Fenders, hood, inner fenders, grill support, box, bumpers will all work.
clutch linkage, brake lines, steering box and linkage and radiator are also the same from '63-up.
The rear end is a 1-year old rear end housing, mainly because of the length of the panhard bar and it's mounting bracket.
I'm almost certain the floors are the same from '63-'66, which means the cab mounting points will be the same too.
-Brad
