Car is a 2001 grand prix GTP
I am trying to replace the o-rings in the quick connect. Right now I am working on the larger line.
Inside of the quick connect there is a hard plastic spacer and an o-ring is supposed to go on each side of it.
I'm not sure if this hard spacer is supposed to be able to move, but the one in my quick connect does, but I am putting an o-ring behind it, and then moving it so that I can put an o-ring in front of it.

The o-rings aren't very tight/secure in there. They stay in place, but they have some wiggle room.
When I try to reattach to the connector to the fuel rail, it won't connect, and then when I look inside the connector, the o-rings have rolled out of place.
Am I doing something wrong? Wrong o-rings possibly in this kit?

These are the o-rings I am using:
Dorman Products - 800-013