If you wish to completely remove all hidden headlamp components, you'll need to do the following:
- Headlight mounting brackets/backplates need to be swapped
- Headlight bezels needed
- Replace headlight switch in dashboard
- Remove all vacuum lines
- Remove vacuum canister on driver's inner fender well
- Remove headlight diaphrams/component (actuator arms, etc)
- Swap endura bumper frame mounts - hidden headlamp car frame mounts are completely different
This is a LOT of work. It's easier to examine your system logically, starting at headlight switch to determine the problem than it is to purchase new components and to spend the effort to remove all of the factory hidden headlamp components.
Oh, don't forget the purchase price for the new headlight mounting bracket/plates and correct 68 only headlight bezels (spendy)...
WHen you say they never work correctly, just what do you mean?
They don't open/close?
They don't stay up?
All of these issues are documented at length in multiple threads and the fixes are really quite simple in nearly all instances.
Not going up/down correctly - does your car have the plastic grommets that support the headlamp cover arms as they pass through the bumper mounts? If not, they are integral in proper working. They are available at our host. Cheap, simple.
This is just one thing to consider.