K frame relationship to steering box

The K frame has no relationship to the steering box at all. The one glitch is 67 only K which uses the oddball stud mount idler arm at the K. That is one year only, but some guys convert them

So 68-76 the K is immaterial. The key is you must have a pitman obviously to fit the box, and the rest of the linkage must match the pitman. Those 4 pieces, the box, the pitman, the idler and the center link mus all be compatible.

I've lost track but I think the later boxes are all "big spline" so take a pitman with of course big splines.