Make sure you get the black rubber strip that fits into a gap in the center of the cross bars. There's an opening on the top and the bottom. At first I only installed the top piece and they would whistle whenever they were extended. Then I read somewhere that you need to put the bottom stip on too. It prevents the whistling.
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Mario & Idie
'03 2720SL
'07 Tundra 4X4
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