Does anybody know what thread pitch the spindle is on a 09 721 trailer. I had a bearing the just blowed up this morning. Thank the lord I wasn’t very far from home. My fault completely for not keeping a eye on things. I made another mistake when trying to get the hub off. The washer that’s behind your axle nut has a flat slot in it make sure it is lined up when trying to pop the hub off or you will mess your threads up.