Had early-a Valiants and Barracudas torn apart before and never seen anything like that. The seller says it will also fit newer years? Not many parts from the early-a fit the 67-up models.
Maybe they are mounts to hold the blinker fluid resivor to the muffler bearing....
Never seen anything like that on any of the 66 and earlier Valiant`s and Cuda`s I have torn apart. I guess it falls into the stupid Ebay search of on part fits any car. Like the yes this turbo bolts on your stock 65 Valiant.