The heritage of Painless Wiring is in the street rod side of things. When they started doing that, back then, they were the only ones using OEM quality wire (gauge and insulation type/thickness) and connectors. All GM-Packard Electric. This was good, back then! Usually matched the GM color codes!
In later years, they have branched out into some vehicle-specific harnesses. What they sell, otherwise, is "universal fit" and depends upon the number of circuits in the harness. AND that universal harness is probably what you have.
In the mean time . . . get/download the appropriate Chrysler factory wiring diagram for your vehicle! It's quite good! Just make sure it's for your vehicle!
The Painless Wiring harnesses were NOT designed to completely replace EVERY piece of wire on the vehicle, especially Chrysler vehicles, as their main thrust is typically GM and Ford vehicles. And THAT's why you correctly diagnose where your electrical issues are and repair THAT area rather than tearing up a complete car with new universal-fit wiring. In theory, you determine which circuit on the Painless harness will go where, matching color codes when possible, and then put that circuit to where it should go. Any "branches" will probably have to be wired by YOU.
As mentioned, you have the harnesses inside the passenger compartment. You have the multiple harnesses outside the passenger compartment, which go through the bulkhead connector. Outside, you have the forward lamp harness, the connector harness that goes to the rear lights, the rear light harness, the charging system harness under the hood, the engine harness (engine senders/sensors, distributor, etc.). Once you get it all broken-down into which wire does what and where it goes, it's not space ship mechanics, just pay attention to what you're doing.
I believe you can download a '70 Chrysler parts book at MyMopar.com. With that, you can see the individual harnesses in the illustrations section. That will give you an idea of what goes where and is paired with what components.
ALSO, make sure any harness grounds are in place and functioning! NO matter what! In some cases, when voltage can't find the normal ground, it looks for a ground by back-feeding and finding ground in another place/harness. Make sure all electrons jump where they are supposed to, on cue!
CBODY67
