I will need to get a vice to use and remove the stock SunTour, Shimano, etc. freewheels one would typically find on old Univegas, Schwinns, Peugeots, etc., correct? I guess for some reason I am blanking out, but I CANNOT remove an old style gear cluster off of a 27" or 700C" with just a chain whip, right? I will need the "keys" if you will, right? And I will probably need a vice to remove them.