As I posted before, you do not have e to pull the dash to change the mode door actuator, I know this because I've done it before. Remove the lower panel and the ac ducts on the drivers side under the steering column and you should be able to get to it. You only need to pull the dash if you need to change the air mix door actuator or the heater core. I'm very familiar with the the entire system on my 1991 NA.