The easiest way to remove the balancer bolt would be with an impact...but the second easiest way I found is like this: (you will need your starter still in the car for this one.)
1. After removing the radiator, put your socket and ratchet on the bolt with the beam of the ratchet parallel to the floor. The handle of the ratchet should be pointing toward the driver side fender.
2. Put a jack stand under the handle of the ratchet to support it. If the socket keeps falling off the bolt, stuff some paper towels in the socket to snug it up tight (or use 2 jack stands for support).
3. With EVERYONE standing WAY back (no joke, parts might be flying), turn the key for a split second. The torque from the starter is usually plenty to remove the bolt. If the ratchet fly's off (which happens more often than not), set it back up and try again.