How do I properly drain the antifreeze out of my 02 ram 4.7L and replace the antifreeze. I dont really see a petcock like in the old style radiators, Is there a drain plug. Also how do I add the antifreese since the radiator cap now is ontop of the overfill bottle and not on top of the radiator like the older vehicles.

 

See the factory service manual here. This is for the Hemi, but it will give you the gneral idea.