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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | The fan switch is wired to a "resistor assembly" mounted to the back side of duct. It's coils are inside probably for "cooling" by the airflow and no chance to burn you or something else. It has 3 contacts on the outside of duct. Fan switch has 4 contacts, one is hot feed. Factory Maintenance Manual Diagram shows how it's wired up or I can give a to-from list.
The "resistor assembly" is a typical speed control device remotely mounted away from switch.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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