Ok,.this is different. Sure grip rear??

just for fun....or to know the speak, many different names.....Dana and their counterpart in Europe, Salisbury call them Powr-Lok and will cover many applications...other corp names listed below..am sure there are others not mentioned, not a catch all mind ya but a hodge podge of fancy names for a similar component.

Wiki referenced data!
this has been a P. Harvey minute...now back to your regular scheduled program