Without researching I can only speak for A bodies:
Don't forget the centerlink mounts on top of the pitman and idler arms tnrough 1972. Tapered studs point up.
Starting in 1973 the center link mounts under the pitman and idler. Tapered studs point down.
You cannot mix and match between the two arrangements.
Would a 60s C body large sector pitman work in an A body? Would it interfere sonewhere in the smaller A body? I have no idea and don't forget the length and profile of the idler must match.