There was a question on the Yahoo group RANSflyers recently about a tailwheel that would not swivel freely.  I advised the pilot to check the pin within the swivel assembly of the tailwheel.  He then contacted Matco who advised him that the tailwheels are not pre-greased prior to delivery.  So remember to grease your tailwheels when you get them.  Here’s a link to a drawing of the tailwheel.