Originally Posted by Newguy

You have to loosen all 3 bolts in the alternator.
The one closest to the block has a nut on the front, requiring a wrench on the front and the back of the bolt. This is the one I bent my ratchet on, way too tight.
The one on the top left (furthest away from the block) has the tensioning bolt attached to the front of it. Loosen the head of the bolt from behing the alternator. You already have the 3rd bolt loose, which is the only bolt requiring you to get under the car.
Once all 3 are loose, you can turn the tensioning bolt CCW to loosen the belts.

Do it all in reverse when the belts have been changed out.
Good luck.