[s-cars] Power resistor P/N and color question?

[Postupack, Jeff]

Esteemed S car list:

I need to replace my power resistor that controls the Radiator cooling
fan speed.

Called Clair Parts today, and they need to know which unit I have,
Silver or Gold.
I thought that was odd, but Jim at Clair is pretty clear that is a
designator.

Since electrical parts are not returnable, I have to be sure.

Can anyone tell me where the power resistor is located?  

Then I can look at mine. 

Or if you know a part number, that works too!

All the best
JP