A vehicle axle formed having a composite tubular member and a pair of
metal sheaths spaced apart from one another at opposite ends of the
composite tubular member. The composite tubular member has an outer wall
surface and an interior elongated channel, with the interior channel
having an inner wall surface. The composite tubular member also has a
first end wall and a second end wall at opposite ends of the composite
tubular member. Each of the metal sheaths has an outer surface, an inner
surface, an inner end portion having an inner end portion edge, and an
outer end portion having an outer end portion edge. Each metal sheath
inner end portion has a transition area, with the transition area having
a first area of changing thickness and a second area of a substantially
constant thickness. Each of the metal sheaths has stabilization keyways
formed in the outer surface thereof to accommodate a key, with the key
when positioned in the stabilization keyways precluding the rotation of a
wheel hub about the axle.