At the bottom of your radiator (where your rad fan slides down into) you will see two clips.   If your Shelby/Dodge spent any time up north, these clips (on your car) are likely pretty rusty or at least badly oxidized.   

If you are attempting to do a 100 point full restoration, these are a nice touch to complete your resto!
 
See pics to show you the location of where these go...these are #9 in the illustration.
Mopar part number:  4140538
 
Price is for 1 clip.  Order as many as you need.