This step involves removing the rear seat back cushions. Above I have folded the drivers side seat cushion back down and removed the bolt that goes through the pivot bracket to the seat back.
Install the bolt back into the seat back.
Here you can see the seat back on the drivers side removed and already stored.
Above I am now exposing the seat back bolts on the passenger's side (60% side).
Again remove the bolt from each side of the seat back from the pivot brackets.
Don't forget to store the bolts back in the seats so you know where they are when the time comes to reinstall.
Store your two seat backs before starting Step 4 - Installing bed storage support.