Originally Posted by matthewq4b

Yup not correct. That orientation on the power plug is the Green Module. The Black module has the location tabs clocked 90° from yours on the 3 pin plug.
Also the wiring colours on the 3 pin plug are not correct for the Black module. The Black module uses the following colour wires in the 3 pin plug Blue (Coil Power Run) Black (System Ground) Green (Coil Negative)

That is a Green module. The 3 pin plug on the Green module are Blue (Coil Power Run) Red (Bat Power Run) White (Bat Power Start)

No replacement Green or Black module will be a true Green or Black module they are rewired DS II (blue) modules.

Your truck uses the Green Module.

Now the question is how do you truck get a Green module with Black strain relief. Now, some of this is conjecture as your factory module predates my time with Ford, but all the Factory replacements when I was there were all colour coded properly.
I suspect that in 75 when SSI's wiring configuration was reconfigured to put all the power leads in the same plug Ford never bothered to change the colour of the strain relief and just continued to use black.
I suspect that colour coding was first done when DS II was introduced in 76 as it would make identification much easier. In 3 years they used 3 different modules and it would be a pain for the average parts guy or tech if you had to check the part numbers in the book to tell them apart. Colour coding the strain reliefs makes it a quick glance to identify them.

Originally Posted by F1001975

Thanks for all the info you all have provided.

I ordered the green one. My factory unit is still working, but I do want a replacement.. I will put the replacement on the truck and keep the factory one as a back up.

Originally Posted by matthewq4b

You can even use the black one it will just need to be rewired and the plug changed. So don't pitch it if you can't return it.

Originally Posted by F1001975

Thanks. I didn't return it.
Do I just follow the schematics and change the wires around to the correct positions? I can get the correct plugs and it would be cool to just use this one.