The Solinoid on 91-96 are internal, inside the starter, yes there is a third bolt, it's there not far from the other 2 you allready removed.
You might want to craw under the car and look to make sure both the large and small wire is plugged in to the starter.
It's not too hard to change out the starter, save your money and do it your self.
You can allways pick up a new starter than look at that to give you an idea on where the other bolt is.