Originally Posted by
Michael
You're correct in saying that the stock impeller vanes have a slight curve at their ends, but this curve is very slight. In fact, even in the photos of the stock impeller above the curve are the vane tips is difficult to see. The upgraded impeller vane curves are far more pronounced and should be much easier to identify either visually or by touch.
Unfortunately, I wouldn't be able to tell you whether your GSS has an upgraded or a stock impeller without a photo. Is there anyway you can post a photo of your GSS' impeller? That would help a great deal.
Bookmarks