Doesn’t really help you because it’s my best guess, but Lemforder being OEM, I would guess that they are oil filled vs the Meyle HD which are solid. That said, I don’t know that you would pick up much vibration from poly in the rear, but I do know that they are a hundred times easier to install, just grease and push in. But I totally understand your point, they can be abrasive in the wrong location... like my thrust bushing... almost wish I hadn’t done those in poly because I definitely feel those up front.


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