When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
No - I don't have info on the '76 system :(
If you have two valves up front for the headlights, you might be able to use the early diagram and just dump the extra stuff. Most of that stuff is for the wiper door.
I think daniel77357 has been working on his. He may have a diagram.