They're all sealed up, so theres no way to add grease. Should be pregreased from the factory
Also saw in another post you're from Midlothian, VA and looking for clubs. check out
RVA Toyota Trucks,
HiluxSurf Off-Road, or
Tidewater Toyotas on FB or the
Northern Virginia Roll Call on TacomaWorld (Go to most recent page, most people not actually from NOVA, just most active VA page)