97' dodge 2500- fan blade needs replacing most blades have broken off. WHen i looked up fan blades i noticed dual electric fan blades offered better performance with increased mpg. Is this a good mod to have? WHere can i get one?

 

I've seen some guys try it on other websites and they didn't gain anything on the CTD. However I've always picked up about a .tenth on my bracket cars using electric fans.

 

Look here:

https://www.dieseltruckresource.com/...d.php?t=154902

 

1st I would worry about why the blades broke off & mount/bearings .
I read that there is a new set for our trucks $400-600 , but will not work for heavy hauling , over 16,000 - 18,000lbs , is what some are saying .
I do not tow that heavy so thought about this , but not at that price .