Maybe someone can shed some light-but why are these MG bearings wearing out prematurely - to me. Are they a poor grade? A lot of road junk or brake dust getting in them? I hold up two examples of wheel bearing life - a 1980 Honda CBX, sold with 63K mi on the ODO, didn't need it's wheel bearing changed. My current 1992 BMW K75RT with 93K mi on it, not changed a wheel bearing in it, don't need to, I check 'em. Sold another BMW with 52 K on it, same story. Somebody mentions the spacer being the wrong length, OK that would do it. Sad that a wheel can't be assembled correctly.