Originally posted by dead-eye
I'm currently having the same problem but I'm not sure which rear bearing it is. Why is the Legacy bearing better than OE?
The Legacy bearing is a double tapered roller bearing, where the Impreza bearing is a double ball roller bearing.
I think tapered roller bearings are better at handling side loads.
Otherwise, the two bearings are identical on the outside, exact same dimensions. I don't know why any dealer wouldn't use them. When I went to buy a bearing, they asked me if I wanted the Legacy one instead.