I have a 71 Mach 1 that is going through some major upgrades and I’m wanting to replace the entire wiring harness. I don’t really have many electrical issues but since I have the motor and interior all out, no better time than now to replace all of the wiring. I’ve been searching everywhere and found Painless and American Autowire has them but they say it comes with “many” of the correct connectors and sockets. Not really fond of the word “many” though. Anyone know of who has one that will have all of the correct connectors and sockets? Cutting and splicing old connectors to new wires seems like I’m defeating the purpose of a new harness. Thanks for any input.
Jackwagon3, I'm in the same boat. Just getting to the harness portion of the build. My old harness seems shot. Appears brittle and had a lot of hack job adds over the years. So, I'm thinking of doing a painless universal replacement as a starting point. I originally had heartburn about going this route, because this universal harness set does not have the original Ford mating connectors included (to interface with tailamps, heaterbox, etc). However, I questioned them a bit more and asked them where they got their connectors for a 70 drop in harness (because they make direct replacements of those) and they indicated Del City, Allied Electronics or Mouser Electronics. So, I believe these companies should carry some or all of the original Ford style connectors that you could graft on. The painless universal harness is color coded to original Ford standards, so, should line up with a schematic. What did you end up doing?