[BLOCKER]

Can some one tell me what they look like and how they are installed, I checked the part number and apparantly they are basicly a washer with part of it cut out (they look like a C) is this the right part?
How does one install them?

Thanks

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88 Stang GT Cobra
Every option but leather
10 speaker 440 watt system
Blue/Grey with grey interior
K&N air filter, black outs, & no air