Front ones? If your talking about the front ones then if memory serves all I did was put a wipe of washing up liquid (old skool pre dishwasher stuff ) and put the assembly in the vice upsidedown so the jaws were closed enough to just miss the rubber but the metal surround rested on the jaws and then I put a heavy weight on the rubber so it pushed it down into the bracket, left it for a while and it slowly crept into place, I don't remember it being too tough
What Neil Said ! I like to use silicone in a Foo-Fo can . You need to learn to chill out and wait , not everyone here is sitting on the computer waiting for you to ask a question ~ sometimes it'll take a week before you get the help you need . This question has been asked and answered several times before , if you'd taken the time to look .