I doubt that you'll find one. Ford put all their models in the same Shop Manuals. The EVTMs came out later IIRC. The only major difference between the Wagon models and the others is the Cargo light and the Tailgate wiper/washer. Here's a site that points to lots of Wiring Diagrams for free, including some 1971-1972 Fords: http://www.moby302.co.za/wiring/diagrams.html This might help: http://www.tocmp.com/ This is their new site with an updated list: http://www.oldirononline.com/ Check out the Ford links http://www.oldirononline.com/html/links.htm This is nice-to-have info, but their links might lead to something: http://www.wingedmessenger.net/Tech.htm And of course - EBAY. http://shop.ebay.com/i.html?_nkw=19...Manuals&_osacat=0&_trksid=p3286.c0.m270.l1313 I have mine on CD and on the hard-drive, but Manual manuals are real handy when you're up to your elbows in scraped knuckles.
There's a 1972 Ford Shop CD with all of them on. Mine came with a Maintenance Ford manual on the CD. Details that aren't in the first 4 manuals. http://shop.ebay.com/i.html?_trkpar..._Literature&_trksid=p3286.c0.m14.l1581&_pgn=2 EVTMs (Electrical Vacuum Troubleshooting Manual): http://shop.ebay.com/i.html?_kw=Electrical&_kw=Vacuum&_kw=Troubleshooting&_kw=Manual http://shop.ebay.com/i.html?_kw=Car...um&_kw=Manual&_dmpt=Motors_Manuals_Literature EVTMs http://shop.ebay.com/i.html?_kw=Car&_kw=EVTM Hope that helps. The older aqua blue Haynes manuals had good diagrams and circuit descriptions. Better than the full colour cover books, and clearer to read than the books that only cover up to the 1980s (Fords are a wine-color cover).
Update: I found a set of 1972 Ford car wiring/vacuum diagrams on eBay. I paid more than I wanted to ($40), but I figured it may be something I'll never see again. Thanks for leading me in the right direction on this, Norm.
Amen! For some reason, these vacuum diags are for archeologists, buried in some dark closet, because everybody ripped out the emissions systems back then. That's probably why they're still around, somebody found them 20 years later, and figured they might be useful. Good for you.