I want to change the clock position of my new internal regulator alternator from 3 to 9. How do I go about this ? Thanks.

Loosen the 4 through bolts and turn it. Be careful not to separate the 2 sides of the case to far, or the brushes and springs will get fouled up. Spoken from experience.

what about the stud where the bat wire attaches ?

When clocking the SI series alt., Mark the case so if a mistake happens, you can realign the case back to the original position. Remove the four hex head screws and turn the portion of the case under the pully/fan only. Do not let the stator or lower case turn as these are where all the electrical connections are located. Clock as needed and replace the four screws.

Do not disturb the rear half, nothing needs to be disconnected. You will want to hold the armature shaft in the rear half while you turn the front case. This will prevent the armature from pulling out of the rear bearing and disturbing the brushes when the case bolts are removed.

thanks guys I'm gonna do it tonight.