i know what lube to put in the front and rear differentials but what do you do with the axle actuator assembly looks like grease in it ?? intermediate shaft goes in one side and right side axle out the other side this is 4WD with module on it

There in no required maintenance associated with that component.

thanks for reply but i am changing diff. and all seals. seems like some grease should be in it
??????????????going to get some synthetic grease and wipe in needle bearings

What grease, the diff uses Mobil 1 Syn diff fluid, all the bearings in the diff are lubed by this fluid. Any other bearings are sealed pre -greased assy's.