Perform all items in C level plus the following: Diagnose, repair, or replace any external component of (eng, trans, rear end, cab/body, glass, interior components, sensors, suspension, etc) R&R major components (engine assy, trans, rear end, clutch, 5th wheel, starter/charging system, drive-line components, trailer panels and posts, trailer roofs, cross- members, doors, dolly assy, etc). Work on modern, low-mileage, private fleet equipment (Volvos and/or Freightliners with Cummins, Volvo and Detroit engines) in clean, safe shop facilities.