Turning a 73 Dart into a 72

Cool got a freebie today.a friend of mine just got tires on her moms car went to costco and got a buy three get the fourth free deal.One of the tires had been replaced recently so I asked her to have them put that one in the trunk.It's an almost brand new 225 65 15 .cost Me $15 to have it mounted and balanced.So including the cost of the wheel I've got a spare for $35.00!