They don't, '65 Polara/Monacos didn't have wheel well trim. My guess is the trim in your pictures is that stick-on plastic crap. If you'll notice in the first picture the moulding doesn't extend under the wheel lip where it would be screwed to the fender, also the moulding extends to the bottom of the wheel opening at the rear, where on the blue car it stops at the top of the rocker moulding.