Decided to try Dex6, dropped the pan drained the fluid. Took out the filter and this time the O-ring came with it. Now the stupid new one wont go back inside. Looked at a couple videos and apparently hammering it with a socket in the end helped pushed it in. Ended up pushing the socket in the O-ring instead and now had to buy a new filter set. Only way I was able to put it on without the filter falling was putting the o-ring on top of the filter first and sort of wiggling and pushing it up. Not sure if I should try again and pushing the O-ring in first by hammering it then just snapping the filter in. Kind of afraid the way I did it this time the filter will slide off while im driving. Do you guys think it will fall off? When I put the filter on it was holding on by itself but the o-ring was not pushed in all the way. Any suggestions on how to put this pos back in the hole.