Hi all, while polishing my 50th rear hub shell I thought it was better to leave the dustcaps on, so that I would not end up polishing or damaging the lips near them, just those little thoughts that one can pass on, and the good thing is you can use them over & over again, now I've just got to find those NOS ones I had around here somewhere & hoping they are not front ones.........wayne davidson Invers NZ.........