Patent ID: 8365637

Claim:
An output transfer gear group comprising: a. a housing; b. a gear transfer train rotatably supported within the housing, the gear transfer train including an input gear adapted for enmeshing engagement with a transmission output shaft and a gear transfer output shaft, the gear transfer output shaft rotatable upon rotation of the input gear, the gear transfer output shaft having a first distal end and a second distal end; c. a first coupler, the first coupler including: i. a hub, the hub rotatively coupled with the first distal end of the gear transfer output shaft, ii. a bearing carrier, iii. a coupler output shaft supported within the bearing carrier and rotatively coupled thereto, iv. a coupling mechanism, the coupling mechanism including a sliding collar rotatively coupled to the bearing carrier, the coupling mechanism movable between an engaged position, wherein the sliding collar of the coupling mechanism is rotatively coupled to the hub such that rotation of the hub rotates the sliding collar, the bearing carrier, and the coupler output shaft, and a disengaged position, wherein the coupling mechanism is disengaged from the hub, and v. a solenoid adapted to control a flow of hydraulic fluid to selectively move the coupling mechanism from the disengaged position to the engaged position; d. a second coupler, the second coupler including: i. a second hub, the second hub rotatively coupled with the second distal end of the gear transfer output shaft, ii. a second bearing carrier, iii. a second coupler output shaft supported within the second bearing carrier and rotatively coupled thereto, and iv. a second coupling mechanism, the second coupling mechanism engaged with the second bearing carrier, the second coupling mechanism movable between an engaged position, wherein the coupling mechanism is engaged with the second hub such that rotation of the second hub rotates the second bearing carrier and the second coupler output shaft, and a disengaged position, wherein the second coupling mechanism is disengaged from the second hub; and v. an engage solenoid adapted to control a flow of hydraulic fluid to selectively move the second coupling mechanism from the disengaged position to the engaged position; and e. a controller, the controller electrically connected to the solenoid of the first coupler and the engage solenoid of the second coupler, the controller operable to prevent the engage solenoid of the second coupler from moving the second coupling mechanism of the second coupler to the engaged position until the solenoid of the first coupler has moved the coupling mechanism of the first coupler to the engaged position.