Bucket Seat assembly help needed

Yes I meant the sliders as you described I have purchased. I have both an A body and E body, these seats are going in the E body. I posted here because I figured they are the same and it seems there is more interaction on this site than E body.

Just need further clarification. I'm not sure exactly what this part is pictured here and if I need it. Seems that the latch comes with or without this part: