I noticed that my bearing covers on one side of my trailer was leaking so I went and got a new one. After inspection the old cover that goes on the outside with the rubber stopper was damaged. I picked up a new one and went to press it in the axel part of the wheel bearing it dont fit so well... I hit it with a rubber hammer and it dont want to go in... If I put the cover in the freezer and leave the trailer in the sun all day, will it make any difference trying to put the cover on ?