Instructions on re-using the original pulley at: http://www.dmcnews.com/Techsection/waterpumpDMC.html Other than it being somewhat easier to do, I see no huge advantage to the bolt-on one. I don't think you'll ever do a water pump on the side of the road. Dave --- In dmcnews@xxxxxxxxxxx, "Walter" <Whalt@xxxx> wrote: > I want to replace the water pump on my D and am curious to know which is the > best way to go. It seems to be a choice between one that has a pressed-on > pulley similar to the original vs. getting a Volvo pump that uses a bolt-on > pulley. > > Apparently there are advantages/disadvantages both ways.