I rarely replace bearings on any bike, and never fronts on a GG. What I think is the trick is pack the area between the seal and bearing with grease. Every time the wheel is off, I clean this grease (and any dirt that got in) out and repack. Take seconds and seems to work, along with keeping good seals and spacers in the wheel.
Mike, Is this the '01 wheel you converted? Could you have an improper length spacer tube, that causes a preload on the bearings when the axel is tightened?
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