UPDATE 11-19-20: We still do not have the shaft seal dialed in but we are offering this kit with a proven substitute seal until further notice.
This kit will recondition most FoMoCo headlamp actuators built from 1967 into the 70's on most any Thunderbird, Torino, Lincoln, Cyclone or Marquis. The kit will service two actuators even though many cars only come with one center mounted unit. If your actuator holds vacuum on the bottom port but does not hold vacuum (or pressure) on the top port then this kit is what you are after. If your actuator does not hold vacuum when applied to the lower port then your unit will have to be opened midway to replace the large inner bellows and this is impossible to do without specialized tooling.
You can go through the photos above for step by step instructions on how to replace the seal yourself.
NOTE* If you use a vise to hold your actuator while you work on it, do not over tighten because you will crush the can.