Stick to the OEM for the door and window seals and also engine mounts. It will always fit and it will last longer. The aftermarket rubber is terrible. Stay away from it. It is cheap for a reason poor quality rubber. Yes the OEM is expensive but it worth it in the long run.

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Britton McIntyre

68 280 SE coupe 'Hairball'
70 280 SL
71 280 SEL - RIP May 2010