A vehicle power steering assembly is provided. The vehicle power steering
assembly includes an input shaft having first and second end portions
that extend along an axis, and a first aperture that extends
substantially axially into the first end portion. The vehicle power
steering assembly further includes a torsion shaft having third and
fourth end portions. The third end portion has a first plurality of
splines and the fourth end portion has a second plurality of splines. The
third end portion is disposed in the first aperture of the input shaft.
The first plurality of splines on the third end portion fixedly couples
the torsion shaft to the input shaft. The vehicle power steering assembly
further includes an output shaft having fifth and sixth end portions, and
a second aperture that extends substantially axially into the fifth end
portion toward the sixth end portion. The fourth end portion of the
torsion shaft is disposed in the second aperture of the output shaft. The
second plurality of splines on the fourth end portion fixedly couples the
torsion shaft to the output shaft. A rotational movement of the input
shaft a predetermined distance in a first direction about the axis
induces rotational movement of the output shaft in the first direction.