What needle bearings can you grease on the front Axle? My unit bearings are sealed units there is no grease fitting there. You can grease the u-joints if they have a grease fitting. I have lock-out hubs so my front axle doesn't turn all the time except for the winter and plowing. I wish these where like the old style without unit bearings. You could pull everthing and grease them up. The unit bearings are not as strong as the old style that had spindle and two bearings plus the stub shaft bearing