I have a 06 fx4 flareside bed style and need the Moulding Assembly - Rear Quarter Outer can’t find it any where

 

You probably won't have any problem trying a salvage yard, but you will need to go there. If you call first they should be able to tell you if there is a vehicle there that has what you .want. You will very likely need to remove it yourself , but this way it comes with all the hardware.