What are the differences, and are they at all interchangeable?

Thanks,

Joe

The glove box door is longer on the early cars and the dash top has a recess allowing room for the door to open. You can use the late dash top on an early car, but you will have to slightly trim the foam pad so the door will open all the way. Other than that they are the same I believe. I had to do this mod on mine. I always wondered why the glove box door wouldn't open all the way on my 70 !

Thanks for the reply Pete. How about an early dash on a late car?

The defrost vents are different.

What are you doing now joe?