A kit for implanting a glenoid component comprising: a retroversion glenoid component including a generally flat glenoid bone contacting surface defining a first plane, a first offset peg extending away from the glenoid bone contacting surface, a concave articulating surface, an upper surface extending about the concave articulating surface and generally opposite to the glenoid bone contacting surface, the upper surface defining a second plane, the second plane angled with respect to the first plane so that the body portion is generally wedge shaped when viewed from the side, the retroversion glenoid component including a centre peg extending away from the glenoid bone contacting surface and defining a centre peg axis, the centre peg axis forming an angle other than 90 degrees with the first plane, a drill guide configured to guide a drill in forming a bore in a scapula to receive the first offset peg, the drill guide including a generally flat drill guide bone contacting surface defining a third plane, a drill guide peg extending away from a bottom portion of the drill guide and defining a drill guide peg axis, the drill guide peg axis forming an angle other than 90 degrees with the third plane, and a first drill guide hole extending upwardly from a bottom surface of the drill guide and defining a first drill guide hole axis, the first drill guide hole axis forming an angle other than 90 degrees with the third plane, in which a first minimum angle defined by the drill guide peg axis and the third plane is the same as a second minimum angle defined by the first drill guide hole axis and the third plane and the same as a third minimum angle defined by the centre peg axis and the first plane, and a pin placement guide having a bone contacting surface defining a fourth plane, a first pin guide hole extending upwardly from a bottom portion of the pin placement guide and defining a first pin guide hole axis, the first pin guide hole axis perpendicular to the fourth plane, and a second pin guide hole extending upwardly from the bottom portion of the pin placement guide and defining a second pin guide hole axis, the second pin guide hole axis forming an angle other than 90 degrees with the fourth plane. a retroversion glenoid component including a generally flat glenoid bone contacting surface defining a first plane, a first offset peg extending away from the glenoid bone contacting surface, a concave articulating surface, an upper surface extending about the concave articulating surface and generally opposite to the glenoid bone contacting surface, the upper surface defining a second plane, the second plane angled with respect to the first plane so that the body portion is generally wedge shaped when viewed from the side, the retroversion glenoid component including a centre peg extending away from the glenoid bone contacting surface and defining a centre peg axis, the centre peg axis forming an angle other than 90 degrees with the first plane, a drill guide configured to guide a drill in forming a bore in a scapula to receive the first offset peg, the drill guide including a generally flat drill guide bone contacting surface defining a third plane, a drill guide peg extending away from a bottom portion of the drill guide and defining a drill guide peg axis, the drill guide peg axis forming an angle other than 90 degrees with the third plane, and a first drill guide hole extending upwardly from a bottom surface of the drill guide and defining a first drill guide hole axis, the first drill guide hole axis forming an angle other than 90 degrees with the third plane, in which a first minimum angle defined by the drill guide peg axis and the third plane is the same as a second minimum angle defined by the first drill guide hole axis and the third plane and the same as a third minimum angle defined by the centre peg axis and the first plane, and a pin placement guide having a bone contacting surface defining a fourth plane, a first pin guide hole extending upwardly from a bottom portion of the pin placement guide and defining a first pin guide hole axis, the first pin guide hole axis perpendicular to the fourth plane, and a second pin guide hole extending upwardly from the bottom portion of the pin placement guide and defining a second pin guide hole axis, the second pin guide hole axis forming an angle other than 90 degrees with the fourth plane.