Check the sway bar end links. Mine did that when I first got my truck and was almost hitting the CV. The end links may have lost the bottom bushings causing them to bounce around. Also check the tie rod ends. Look around your whole front in case something from that recent install came loose.
You are limited to just a few valances, BUT take a look at LMC catalog for the bumper mounting points. You may be able to swap a newer style bumper with a valance on to your truck. Also check LMC exploded diagrams of the grille mounting points as well to see if you can pull off the swap.
Welcome to the site! I'd like to see the truck if you can post pictures. As far as the manufacturing of the Rangers, they stopped producing them in the states so I'm not sure what they are doing overseas yet.