If any of you need a heater control valve whether it be the manual style with the capillary tube, or the vacuum style in the 76-78 factory AC cars we can rebuild them in house. We usually carry the parts in stock and I rebuild them all personally. Cost for the cap tube style runs about 170.00 exchange and the vacuum style is running about 100.00 exchange. After I recoup my setup costs I'll probably be lowering the price a little bit, especially on the vacuum valves. Both are listed on our online store at www.datsunstore.com
We can also rebuild the cap tube style for the 79-83 zx's or we have a new replacement style valve that is a direct bolt in but it doesn't use the cap tube.
I'm also looking for used rebuildable valves for the 76-78's. Unmolested valves only, and the vacuum valve must have a good vacuum diaphram in them still. The vacuum diaphram can't be replaced or repaired.
Z man of Washington