Painless makes them too. For my 1972 Cuda 440-6 I bought a Summit 18 circuit harness it is marked about every foot. To where it goes and it has the new spade fuses not the old glass ones. I was tired of shorts and cracked wires and bad connection at the firewall. The wires run right threw the firewall no connections to go bad or corrode or melt. Now it should be good for another 39 years or more.