The car is a '84 300D. I searched already but didn't come up with an answer. I have tried Bosch and Anco, cleaned the windshield with every solvent I can think of and also tried RainX. The wipers still skip and chatter after a few minutes of operation. Any ideas? I have lubed the wiper arm shafts and everything else is in order as far as I can tell. Its a minor but quite annoying problem. Any recommendations? Thanks, RT

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