I have been doing the service checks that seem to be required for my '19 2500 4WD (solid axle). I've looked at all the u-joints and cannot find any grease fittings. I don't believe I have a Cardan joint either. The joint connecting the transfer case to the front differential looks more like a sealed CV joint (see photos). My dealer's 'scheduled service plan' requires this to be lubed every 7500 miles. Does anyone know if this an updated design for the 5th gen HD trucks that no longer needs grease? If not, any clues as to where the grease point is?