A harvester row unit gear box, comprising: a structural housing; an input shaft, rotatably mounted to the structural housing, and rotatable about a first axis of rotation; a first bushing (122, 124) mounted to the structural housing and having an inner surface with a first bushing opening (196, 198) between a first axial end of the first bushing (122, 124) and a second axial end of the first bushing (122, 124); a first gathering chain drive shaft (114, 116) rotatably mounted within the first bushing (196, 198) and rotatable about a second axis of rotation (115, 117) generally transverse to the first axis of rotation, to drive a first gathering chain; and a gear train, mounted within a gear train containment area defined by the structural housing, that links the input shaft to the first gathering chain drive shaft (114, 116) to transfer rotation of the input shaft about the first axis of rotation into rotation of the first gathering chain drive shaft (114, 116) about the second axis of rotation (115, 117), the gear train comprising a transverse bevel gear drive shaft driven from the input shaft by means of an intermediate set of gears driving a mating gear attached to the bevel gear drive shaft, the transverse bevel gear drive shaft coupled to an inner bevel gear (158, 160) and an outer bevel gear (162, 164), the inner bevel gear (158, 160) driving an adjacent bevel gear for driving rotation of a stalk snapping roller drive shaft (108, 110) and the outer bevel gear (162, 164) adapted to drive rotation of a corresponding bevel gear (166, 168) attached to the first gathering chain drive shaft (114, 116), characterized in that the structural housing defines a first bore (188, 190), generally aligned with the first bushing opening (196, 198) in the first bushing (122, 124) to provide fluid communication between the gear train containment area and the inner surface of the first bushing (122, 124), that the structural housing comprises a structural wall that forms a part of the gear train containment area and that defines a first wall aperture (180, 182) in fluid communication with the first bore (188, 190), wherein the inner bevel gear (158, 160) has a set of gear teeth that rotate within the gear train containment area proximate the first wall aperture (180, 182) in the structural wall, and that the structural housing defines a first lubricant reservoir (184, 186) along a length of the first bore (188, 190). a structural housing; an input shaft, rotatably mounted to the structural housing, and rotatable about a first axis of rotation; a first bushing (122, 124) mounted to the structural housing and having an inner surface with a first bushing opening (196, 198) between a first axial end of the first bushing (122, 124) and a second axial end of the first bushing (122, 124); a first gathering chain drive shaft (114, 116) rotatably mounted within the first bushing (196, 198) and rotatable about a second axis of rotation (115, 117) generally transverse to the first axis of rotation, to drive a first gathering chain; and a gear train, mounted within a gear train containment area defined by the structural housing, that links the input shaft to the first gathering chain drive shaft (114, 116) to transfer rotation of the input shaft about the first axis of rotation into rotation of the first gathering chain drive shaft (114, 116) about the second axis of rotation (115, 117), the gear train comprising a transverse bevel gear drive shaft driven from the input shaft by means of an intermediate set of gears driving a mating gear attached to the bevel gear drive shaft, the transverse bevel gear drive shaft coupled to an inner bevel gear (158, 160) and an outer bevel gear (162, 164), the inner bevel gear (158, 160) driving an adjacent bevel gear for driving rotation of a stalk snapping roller drive shaft (108, 110) and the outer bevel gear (162, 164) adapted to drive rotation of a corresponding bevel gear (166, 168) attached to the first gathering chain drive shaft (114, 116), characterized in that the structural housing defines a first bore (188, 190), generally aligned with the first bushing opening (196, 198) in the first bushing (122, 124) to provide fluid communication between the gear train containment area and the inner surface of the first bushing (122, 124), that the structural housing comprises a structural wall that forms a part of the gear train containment area and that defines a first wall aperture (180, 182) in fluid communication with the first bore (188, 190), wherein the inner bevel gear (158, 160) has a set of gear teeth that rotate within the gear train containment area proximate the first wall aperture (180, 182) in the structural wall, and that the structural housing defines a first lubricant reservoir (184, 186) along a length of the first bore (188, 190).