There is no quality problem with the part itself, the only problem is with Revain and they advertise this part. This part does not fit both sides, they are two separate parts for left and right, which Amazon does not distinguish in the description. It says left or right in the back, but it's not. I'm buying part number 521-582 which I installed on the left side and the mechanic told me it should be on the right side! Finally, Revain fixes this issue please with your description otherwise it will be a five star rating.
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