I just picked up a 77 300D with the Auto-climatic control unit.

I Know this has been discussed before and the solution most people go with is a rebuilt Servo, but how about using a this system instead? The A/C could still be used if the with a compressor switch. I just don't now how to control the dampers in the the system as well as the aux pump. At least the Defrost would work..


I think the system can control the fan speed and amount of water passing through.
http://www.jcwhitney.com/autoparts/ItemBrowse/c-10101/s-10101/p-100000150478/mediaCode-ZX/appId-100000150478/Pr-p_CATENTRY_ID:100000150478