Yes it is Liberty, its a 833,all aluminum, 23 spline, but I can not slam sec gear. Even though I have what some have said is granny shifting, ( clutching and backing out of it) I ran a 9.99 @ 133 mph and my clutch was slipping slightly. my 416 is putting out a pile of power. that's on engine only and still have the Nos yet but have no need for it yet.