I recently picked up an '03 Warrior in pretty decent shape. The axle bearings seem good, no noticeable wiggle, but I want to install a zerk fitting in the carrier. Is it possible to put the fitting in with the carrier intact? Just hate to take it all apart when its still good. I know about the seals on the bearings, but do believe the grease can find its way in. Obviously the number one concern would be metal shavings, but thought I would get some feedback from the experts! Thanks in advance for any light you all may shed on the subject.