Reactive steering system for a work vehicle having an articulated chassis

A work vehicle, comprising:

• a front axle;
• a rear axle;
• an articulated vehicle chassis including a front frame portion and a rear frame portion pivotally coupled together at a generally vertical pivot axis, the front frame portion carrying the front axle and the rear frame portion carrying the rear axle;
• a steering system including at least one steering cylinder connected between the front frame portion and the rear frame portion;
• a power plant providing motive power;
• a transmission receiving power from the power plant and providing power to each of the front axle and the rear axle;
• and
• a clutch interconnected between the transmission and the rear axle,
• wherein the steering system is configured to disengage the clutch to disengage power from the transmission to the rear axle and to provide reactive steering, whereby the front frame portion tows the rear frame portion and the rear frame portion is generally free to pivot relative to the front frame portion about the pivot axis.