No, "it's a set of three." Look at the first diagrams I posted of the earlier and later series. The center links, idler, and pitman are all different. All three of these MUST go together. You cannot intermix them.
Center link is pretty much the same from 67 -- 72. 67 had the "odd" idler with a stud mounting instead of a through bolt. But you can "work over" a 67 K and "convert" it to use a 68 - 72 or even a 73 / later idler
The deciding factor is pretty much the pitman. You must have a pitman that matches the spline on your box.
The thing I am not at all clear on is "which boxes" have large and which have small splines. I have a manual box and an older power box with small splines, I believe. I believe the later power box that's in there now is large spline.
There is NO WAY to intermix the early / late pitman and idler, unless the tapered holes are hogged so far as I know, unless the nut is "just sort of started" and that might not be possible
This is why I suggest you get all three out, and some GOOD photos of them, so we can help you determine what you have.
There are other photos posted on this forum of the early / late series stuff
