PainlessPerformance 20120 Direct Fit Mustang Chassis Harness (1965-1966) - 22 Circuits

This is a great way to repave you entire wiring system for beginners. It also has ways to add more advanced accessories. The Painless Customer Service is very helpful. If you need to replace your wiring this may be your way to save the EXPENSIVE charges at an auto repair shop.

I installed this on a 1964 Falcon. You have to do a few changes. But 95% is the same as the Mustang

I bought this when I started my restoration process on my 65 Fastback. It is labeled as a "complete" chassis harness and has "everything you need." This is simply not true. Thankfully I saved my old wiring harness. There are lots of wires on the Painless kit with no end on them. In other words you will either need to buy more parts on top of the already high price tag, direct wire into existing wires, or salvage 40+ year old ends. Isn't that the reason I bought a new expensive harness in the first place so I didn't have to do any of those things? For example, the tail lights and front turn signals require specific plugs-not included in the Painless kit.The wires are labeled nicely and the instructions are pretty straight forward. You do need some experience and expertise to run this harness.My recommendation is to go to a swap meet and find a guy selling a similar 14 fuse wiring harness and use that kit. There's several guys out there making just as quality if not better than this Painless kit. It's much cheaper and is the exact same product.I hope this helps and good luck!

Everything you need it's nice Everything is labeled in the booklet and on the wires