A turbine assembly for a turbocharger comprising: a turbine wheel that comprises a base, a nose, blades, and a rotational axis that extends from the base to the nose; a turbocharger shaft operatively coupled to the turbine wheel; an annular component that comprises an opening that receives at least a portion of the turbine wheel; a shroud component (552, 1052, 1152) that comprises an axis aligned with the rotational axis of the turbine wheel and an annular portion and a cylindrical portion that comprise an outer surface and an inner shroud surface wherein the outer surface (556, 1056, 1156) comprises a lower axial face and an upper axial face; mounts (575, 1075) that extend from the annular component to locations at the shroud component wherein the mounts form an axial clearance between the annular component and the shroud component; a turbine housing (562, 1062) that comprises an axis aligned with the rotational axis of the turbine wheel, a lower axial face, an upper axial face and an inner surface(567, 1067) that extends between the lower axial face and the upper axial face; vanes (255,555) disposed between the annular component and the shroud component wherein each of the vanes comprises an axial post that comprise a common post diameter wherein a radius of the common post diameter is less than the respective radii of the locations of the mounts at the shroud component, and a C-shaped seal that comprises an inner diameter, an outer diameter, an axis aligned parallel to the rotational axis of the turbine wheel, a lower lip that contacts the lower axial face of the outer surface (556, 1056, 1156) of the shroud component (552, 1052, 1152) along the annular portion of the shroud component (552, 1052, 1152), an upper lip that contacts the lower axial face of the inner surface (567, 1067) of the turbine housing (562, 1062), and a wall portion that extends between the lower lip and the upper lip, characterized in that at least the lower lip of the C-shaped seal comprises a lip diameter that is approximately the common post diameter such that the shroud component (552, 1052, 1152) directs forces due to contact with the lower lip of the C-shaped seal to the mounts (575, 1075). a turbine wheel that comprises a base, a nose, blades, and a rotational axis that extends from the base to the nose; a turbocharger shaft operatively coupled to the turbine wheel; an annular component that comprises an opening that receives at least a portion of the turbine wheel; a shroud component (552, 1052, 1152) that comprises an axis aligned with the rotational axis of the turbine wheel and an annular portion and a cylindrical portion that comprise an outer surface and an inner shroud surface wherein the outer surface (556, 1056, 1156) comprises a lower axial face and an upper axial face; mounts (575, 1075) that extend from the annular component to locations at the shroud component wherein the mounts form an axial clearance between the annular component and the shroud component; a turbine housing (562, 1062) that comprises an axis aligned with the rotational axis of the turbine wheel, a lower axial face, an upper axial face and an inner surface(567, 1067) that extends between the lower axial face and the upper axial face; vanes (255,555) disposed between the annular component and the shroud component wherein each of the vanes comprises an axial post that comprise a common post diameter wherein a radius of the common post diameter is less than the respective radii of the locations of the mounts at the shroud component, and a C-shaped seal that comprises an inner diameter, an outer diameter, an axis aligned parallel to the rotational axis of the turbine wheel, a lower lip that contacts the lower axial face of the outer surface (556, 1056, 1156) of the shroud component (552, 1052, 1152) along the annular portion of the shroud component (552, 1052, 1152), an upper lip that contacts the lower axial face of the inner surface (567, 1067) of the turbine housing (562, 1062), and a wall portion that extends between the lower lip and the upper lip, characterized in that at least the lower lip of the C-shaped seal comprises a lip diameter that is approximately the common post diameter such that the shroud component (552, 1052, 1152) directs forces due to contact with the lower lip of the C-shaped seal to the mounts (575, 1075).