Thanks Adam - yes it sits up on that little block; actually I noticed grease squeezing out from under that block? Never saw that before; was just going to pull the zerk to see if there might be dried grease or debris blocking something inside. The zerk itself seems to be fine; i am guessing the hex just got rounded off. Can probably pull it easy with vice grips or pliers if I get ambitious.

Jeff
96 T100 SR5 4WD Ext Cab, Warn Hubs, HD torsion bars, Bilsteins, Camper Shell, TJM bar, factory 31 x 10.5's, Powertrax No-slip rear, Recaro driver's bucket