convertible top rattles
 

On my 91 LX convertible the "ribs" of the top rattle when I go over bumps, railroad tracks, etc. It's weird because I didn't notice it until after I trailered the car out here to California.

I expect some degree of rattling with a drop top but is there anything I can tighten or adjust to fix this without affecting the top's ability to go up/down smoothly?

Thanks in advance

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Greg
91 LX Convertible

anyone?