I think you can, but there's subtle differences. Probably means it's pain. Like the the "horn grills" - they're different shape. And 69' had 2 batteries, not sure if it affects the shape or way the fenders go on, but it could slightly. Hoods should be the same?
Bumpers are different in details, but oughtta swap.
Go to
www.912registry.org BBS, they'll give you the 100% right answer.
Bob O