Roughly ’70 to ‘79 cruise switches come in three different flavors (based off of the column they fit).
Non-tilt, tilt and then Tilt/telescopic. The last version is only for some C-bodies.
Early ‘80’s pickups and vans are also a source for the ‘70’s cruise switches.
You can get the first two to interchange but the angle the arm leaves the column is different - so wrong arm could be too close to wheel or too far away. A person could bend the arm to make one fit, though (I’ve not tried that).
I might recommend checking with FBBO “Parts Wanted” section. FCBO might also be a good place. Not very many A-bodies ever got cruise – but it doesn’t hurt to ask.
If you happen to find more than one switch, let me know. I would like to get a non-tilt switch – and hadn’t started to look for one, yet.
With the exception of tilt vs. non-tilt switches (I don’t remember which one has more angle to it other -than one is almost flat (90’ angle) and other has about 15’ angle to it (75’ angle)).
I can tell you if one you find will work, or not, by looking at a picture of the switch.
Note: the angle of existing turn signal lever will be the same angle of cruise switch lever.
Now the cruise switch which is really hard to find is the ones made in the ‘60’s.
BudW