My bike is a 1983 250r and I replaced the bearing carrier with a lonestar one. The black half moon seals that go in the back side through the slits in the swingarm....are they needed? Mine are trashed and im wondering if they are even needed before I try to find some to order. I can't really see what the purpose is for them other than stopping a bit of water and mud but the bearings themselves are already sealed into the carrier so?? I tried a search but did not really find the info. Someone said they were not needed but that was for a 1986 so might be different than mine. Thanks