The bolt heads that you need to access are going down through the clamp half into the pod, not from inside the pod to the clamp.
its best with a 2nd pair of banks, but you will need to remove the 2 bolts that clamp the 2 halves to the tower and slowly lower the a little. From there, you will see the 2 allen bolt heads. Before tightening, they need a little loc-tite on the threads. Pull them one at a time, add the loc-tite and re-install. Once both are back in, then securely tighten them, but not too much. Do not over tighten the clamp bolts either.