So the oring that ZZP sent me to seal the fuel pump canister in the tank failed and I got a new one from advance auto. It is noticeably thicker which sounds awesome, hurray it should seal properly. But I cannot for the life of me push the freaking canister down hard enough to get the snap ring to slip under the tabs that hold the whole setup in place. Is there a trick to this? I'm bout to break my thumbs pushing down on this bastard.