Kingpin assembly with a torque receiving configuration

A linkage assembly comprising:

• a housing having a bore extending therethrough from a first axial end to a second axial end thereof, the bore having an internal threaded area;
• a kingpin assembly comprising:
• a pin having a shall portion that has a spherical member extending therefrom;
• a base having a spherical interior surface that defines an interior area that has an opening at an open end of the base, the interior area being bounded by the interior surface that forms a closure across a closed end of the base, the closed end of the base being opposite the open end;
• the spherical member being rotatingly disposed in the interior area with the shaft portion extending away from the open end;
• and
• the closed end having a torque receiving configuration;
• the base having a cylindrical exterior surface that extends continuously around the base, a portion of the cylindrical exterior surface having an external threaded area thereon;
• wherein the external threaded area is axially aligned with a portion of the spherical member and threadedly engaged with the internal threaded area;
• the shaft portion extending away from the first axial end of the bore;
• and
• the torque receiving configuration being proximate the second axial end of the bore for receiving a torque applying tool thereon for torquing the base into the bore of the housing.