i have a question about the steeda pullies for a 2007 gt manual. i just got mine in today and i am lost on one of the parts. ok i comes with both pullies, the shim for the 2005 and up, a large bolt for the harmonic balancer (the is only used to get the original back on), and an extra bolt. it is much smaller. i have read the directions about three times and have found no metion of this bolt. does anybody know what this is for. thanks ken