While testing out my latest vacuum scenarios, (The test drive was yesterday) can one vacuum servo operate both headlight doors. I have found that yes one servo has the ability to operate both doors. When using my equalizer bar and disconnecting the right headlight servo (vacuum lines only) it operates faster and uses less vacuum, maybe faster if servo linkage was disconnected? It was something I wondered about. I think I will continue to use both servos for the reason if one takes a fritz it'a clone will help it out.