They are a slip fit design, both on the king pin and the bore of the spindles. You should be able to easily tap them out, unless someone Loctited them to the spindle bores. In that case, some heat from a propane torch should make the Loctite let go.
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission