You need to gently squeeze the molding. When removed from orignal car the molding sprang open a bit. Be gentel as the molding will bend easily. It shoul;d snap on and sit firm with no glue or adhesives. Use a small rubber malet, a good peice of wood as a table and some towels so you don't mark the molding up. Gently tap one edge of molding to squeeze it. You only need to sqeeze it a little bit. To much and you'll never get it to snap back on. There a pain to do but i don't think there repoping duster moldings. Take your time and go slow.
