I see no difference between these springs and OE springs other than that they are much cheaper. They appear to be very well made and there's no reason to think they won't last at least as long as the originals. Installation was relatively easy as they are identical in shape and size - all the screw holes lined up perfectly. Time will tell but for now I'm very happy with my purchase. The only downside was that the screws that came with them had flat heads, which I avoided when possible due to the ease of removing such heads. This turned out to be unproblematic since the original screws could be reused. Typically about half an hour of work at a somewhat leisurely pace.
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