Clutch pack pre-build fixture and installation tool

A tool system for coaxially orienting a plurality of inner clutch plates with a plurality of outer clutch plates of a clutch pack on a clutch pack tool, the clutch pack tool including a plurality of guide members spaced apart in a circumferential direction about a tool axis, each guide member being configured to matingly engage a toothed portion of each inner clutch plate of the plurality of inner clutch plates to position the inner clutch plates coaxially with the tool axis, the tool system comprising:

• a pre-build fixture comprising:
• a plurality of alignment pillars spaced apart in a circumferential direction about a fixture axis, each alignment pillar having a curved inner face that faces radially inward toward the fixture axis and has an arclength in the circumferential direction about the fixture axis that is configured to coincide with and fit within a corresponding gap between radially outward facing teeth of each outer clutch plate of the plurality of outer clutch plates;
• at least one support block configured to support the clutch pack tool coaxially with the fixture axis;
• and
• an alignment member configured to engage the clutch pack tool to inhibit rotation of the clutch pack tool about the fixture axis when the clutch pack tool is supported coaxially with the fixture axis by the at least one support block,
• wherein the curved inner face of a first one of the alignment pillars has a different arclength than the curved inner face of a second one of the alignment pillars.