2004 RAM 2500 4 x 4 - Front Drive Shaft

Is there anything to lubricate on a factory front drive shaft in a 2004 model?

I've seen a couple of you-tube videos for lubing front drive shaft on a 2008, but transfer case u-joint appears to be different on a 2004.

Thanks.

Is there a slip joint that needs to be lubed ?

A youtube video shows a section of the double u-joint at transfer case being lubed, but mine appaears different than a 2008. IDK