Wow, just typed huge reply. Previewed it, hit browser back as wasn't ready to post...and lost it all. Here goes again....
Yes, that is correct part if you have the 2.8 v6 engine. You will also need to get rid of crappy feedback carb (I replaced with $100ish chinese 2100 knock off type, from amazon works great). I removed ecm under dash on passenger side, and all vacuum crap, etc., etc., etc. Basically, took it back to a standard points/carb system from 70's. But I can do that where I live...as I don't have to get smog check, etc. I don't think you will find a cardone rebuilt distributor at any of the normal online parts sites in stock. I looked everywhere and couldn't find one. Could have changed since then. There is one on ebay, linked below, rebuilt but spendy $275. Ouch. I bought used one from junk yard find from another member here for $75...bushings still pretty good so I cleaned it up and bought new points ($18), condenser ($5), cap ($20), and wires. Fired right up! I had already replaced plugs with stock champion coppers with tfi, but had to pull them and gap them down a bit, because points not as hot of system as tfi. You can use stock coil, but will need to wire a ballast in line of your "run 12v wire" that goes to coil. Steps down to 9ish volts while running so you don't burn up points. That was maybe $20 and mounted to firewall where it can get good air flow to keep from overheating. Not sure if you need to do that if running pertronix type ignition module instead of points. You'll need to research that, or someone else here could chime in I'm sure. I just started with points setup, and sticking with that for now. Anyway...my system old school and super simple. All that mess of wires (accept a few like alternator, choke, oil send unit...and maybe another one or two can't remember off the top of my head) and vacuum lines and all those sensors on passenger fender wall all gone! I'm happy to take images of my setup, to help you get basic wiring sorted etc. The guys here saved my life and were so helpful and patient to a non-ignition guy like me. I can hopefully pay it forward, so ask away as needed! I think if you read this whole thread, you'll get a ton of good info on much of this stuff as well. Good luck bro!
1974 Ford Mustang II 171ci 2.8L V6 engines. Up for sale is a professionally rebuilt ignition distributor for the following applications (ALL with A/T and dual vacuum advance). 7:30 AM to 5:00 PM. All parts are described to the best of our knowledge.
www.ebay.com