You might have to hook up a vacuum line to the adjusters. I don't know if there is enough mechanical adjustment otherwise. Without vaccum the assemblies go to the lowest height setting.
If you want to go all the way, you could buy the adjusting control that mounts beside the light switch. You would need the 4 position switch, escutcheon, a few vacuum fittings and a length of plastic vacuum line. Get the newest version of the switch as it needs only one vacuum line instead of two.
I added the height adjuster to my wife's 124, however I don't think she has ever used it.