How Do I Attach A Head To A Body? Someone Help Me (sorry For My Bad English)
If you’re using ZBrush 3.5R3 you can use Tool>SubTool>Merge Visible with the Weld modifier turned on. This does require that the vertices match up between the two parts. If they don’t, you’ll need to merge the tools without welding and then use retopology to put them together. (See the links in my signature for info about Retopology.)