They are not all the same! If you don't have the correct linkage, it won't ever probably be right, at least the kickdown linkage.
Correct, but they are all located in the same orientation to each other. Throttle cable is the closest one to the carbueretor, as suspected. The kickdown linkage is farther out, next in importance, then the cruise linkage attaches the farthest away from the carburetor. As if the cable throttle linkage would be on all cars, then the automatic transmission could be the next most important and probable to be on the car, then the cruise control.
The kickdown linkage saw several variations, but was always in the same place on the carb stud. 1965-1968 were solid linkages that adjusted "up top", near cyl #5 on the intake manifold with a threaded rod. With the Fuselage cars in 1969 or 1970 (I know my '70 was this way), the threaded rod was replaced by a sliding adjustment held with a bolt. On my '80 Newport and a bit prior, I suspect, depending upon B-body or C-body, maybe starting in the middle 1970s, the adjustment was moved "down below" near the transmission bellhousing area. The "ease of adjustment capabilities" was gone as the car had to be on a lift to access it. Plus a "special tool" to hold the linkage forward while doing the adjustment.
So, for the kickdown linkage: threaded rod, then sliding sections with a bolt holding the adjustment and rods together, then "hidden" from topside view. In that order. Adjustability was always there, just a matter of where it was done.
1964 and prior used a different geometry and attachment of the throttle linkage to the carburetor, so "different in many aspects" than what came later.
CBODY67