I just got t hrough buying another 12a for my rx7, but i do not know what year it is, and i can't seem to find the number on the motor at all. Its going to be going into my 85 gsl, it had an automatic tranny on it.... what all am i going to need to put the motor in mine. do i need to match up clutches or what? Still kind of a noob with this so i apologize.