I don't think you can install, bolt up, a 1967 and up A body K member in a 1963 to 1966 A body. The front and rear frame rails are closer together on the early A body cars
I was thinking the same thing.
That is correct. All the suspension pieces themselves will interchange, but the K frame and drag link are narrower on an early A.
The rear end housing and springs are the same width as a late A.
