Gear box assembly for a twin rotor combine

A gear box assembly for a twin rotor combine comprising:

• a two speed gear box having:
• a casing,
• an input shaft,
• an output shaft, and
• a two speed gear assembly housed within the casing and operatively connected between the input shaft and the output shaft;
• and
• a splitter gear box operatively connected to the output shaft, the splitter gear box having:
• a housing, and
• a splitter gear assembly housed within the housing and configured to split a torque provided by the output shaft between a first output shaft and a second output shaft extending from the housing in a first direction substantially opposite a second direction the output shaft extends from the two speed gear box,
• wherein the two speed gear box is pivotable about an axis extending coaxial with a longitudinal axis of the output shaft of the two speed gear box relative to the splitter gear box housing,
• wherein the casing includes a pilot circumscribing the output shaft for mounting to a pilot bore of the splitter gear box, and
• wherein the first and second output shafts extend from the housing about a same side of the housing having the pilot bore.