Outer Limits 4x4 Board

I am trying to replace the fuel sender which means I need to remove the rear seat of the sedan.
The back of the base lifts up but the front of it is held by two white plastic clips. How do they come out, push pull slide or what, can someone please offer me some advice thanks, Peter

is it a GD/GE shape? what year model? GE pulls straight up and out, and i think the GD does as well