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Posted by Vaughn on Friday, December 26, 2008 at 20:30:51 :
In Reply to: Adding knuckle grease fitting WM300 posted by Milo/ in/ Pa on Thursday, December 25, 2008 at 18:50:35 :
There really is no need to add a zert fitting to the bottom. The cone/cup get plenty of lubrication from grease turning back to a liquid state. The washboarding is caused by stress from the tire hitting rocks, pot holes and the like, and the cone pounding the cup as the result.