my 04 polaris switchback 700 started to break the little square drive keys for the spedometer, i put one in and it broke within a mile and went to put another one in but cant get the broken piece out of the key hole any help on getting that one out would be helpful, and i heard once those keys start breaking it means that the bearing is getting bad not sure how big of a job or spendy it would be to do, one guy said the bearing looked good so i dno if hurts to run it or not and advice would be appreciated. thanks