Cost I'd imagine, make sure that the stuff fits, and many times the old parts are still good and you won't have to care if they break. Once you know it works, when they wear out you can always replace them with new parts. ----- Original Message ----- From: "Brad Hogg" <bhogg@xxxxxxxxxxxxxxx> > Just curious. Is there a reason to be using old, used brake parts off a 74 > Newport when you can buy those parts new?