A method for manufacturing a one-piece axle tube housing with localized
sections of increased wall thickness includes providing a tube blank,
inserting a mandrel having a reduced diameter profile, passing the tube
through an extrusion die to conform the tube to the shape of the mandrel;
and extraction of the mandrel from the tube to cause outward deformation
of the tube at specific locations. A further reducing step may be used to
form the final desired profile, including reduced inner and outer
diameters along sections of the axle tube housing.