I have (2) 2003 Honda TRX 90's. One of them had a grinding noise and the chain would get extremely tight and then loose when the tires rolled. I inspected the rear axle and found that the bearing on the chain side was all torn up. I removed the rear tires, brakes and axle to get to the bearings and removed what was left of the bearing. My question is this, I have new bearings and seals on the way but I have found conflicting information about the installation of the bearings, do I install the bearings with both side covers in place or do i remove the side cover of the bearing that faces inward. There is not a grease port on the section between the bearings so i think I should leave the covers in place. Please let me know what is proper for this repair. Thanks in advance.