Noisy Demon trunk lid?

Dartswinger70 said

should be 2 sleeves if I recall I have 2 on my 70 Dart I realize it isn't a Demon though...

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Maybe I should have two. To avoid the upper spring to slap under the package tray.

But the noise seem louder than a spring slapping on a sheet metal.
Something like a heavy object bouncing on the trunk floor.
But my trunk is empty.
:rolleyes: