Ok, i know its either the starter motor or the other part :S on a na auto what part do i need to get, is it a flywheel in an auto? or something else?
Flex plate is the auto equivielant of the flywheel. Pull the starter motor off and have a look at the flew plate ring gear. If it's badly worn then that is likely your problem. Changing it is a PITA.
Tech article to pull the starter? Lol 2 bolts and one electrical plug You may have to remove the drivers side exhaust for a bit more room.