A Friend of Mine Gave Me his Agency Power Pulley since he upgraded to the NST Complete Kit. I know it Fits the xB'2s. My Question is The nipple part that go's into the Crank has a Steady line Going around it Someone told me that was prole made from the tC it was on but IM wondering if the Pulley's Come like that brand new or are they Smooth and the line is made dew to use. Someone told me that may cause a problem and cause a seal to blow? Is this Tru? is it ok to use a Pulley that was used already??