Gang
I am working on a frame off restro and need to toally re-wire the entire car. I have been looking at the Painless 12-circuit Universal Streetrod Harness, GM column, #10101. Suggestions on would this be a good level for my 69 Cutlass S. With AC. Now i am also looking with this upgrading the engine fan to electric to keep it cooler.

Mike

 

If this is for a stock resto, the painless one will be a royal pain, as it is just universal.
If you want a direct plug-in replacement, go with American Autowire.

 

Thanks Rob. No not doing a perfect stock resto just a hot rod.

 

I used American autowire and its definitely worth the few hundred bucks extra.

 

Ok before i get started does anyone have a good factory wiring diagram for the 69 olds. I want to have that on hand just in case.

 

I have one for a 70. It should be really close.

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You know, we do have a member who can reproduce these harneses? Eightupman
He has offered to replace harnesses for me with new ones that match OEM when I was looking a year or two ago. He has the skills. Might be worth a PM?

 

I've done a couple cars with universal harnesses. They allow for needed additions and elimination of a lot of old bad designs.
Forget about 12 circuit. Get more, you'll find a way to use the extras. In addition, the smaller harnesses dont include some circuits I would like to have a dedicated fuse, like dash lights, reverse lights.
If you're going with aftermarket electric fans, dont try to run them through the fuse panel. They pull A LOT of current, probably beyond most repro or universal fuse panel capabilities (ask me how I know). Use a large alternator/starter to fuse panel wire and T off to a dedicated fuse for the fan and use a relay.
You can usually reuse connectors for headlights, etc, those are not included in some cheaper kits.
Solder and shrink tube splices.
Use weather pack connectors outside and molex connectors inside to make sub harnesses and assembly/disassemble MUCH easier.
It helps if you understand the key switch, tail light/signal/brake light, dash light, and wiper motor circuits. Everything else is pretty straitforward.