Jeep sales are down. They're way down, in fact, posting a 44-percent drop in their daily sales rate last month. Though the larger 'utes are really dragging down sales, even the once-untouchable Wranger has been feeling the sting of escalating fuel prices, as its blocky shape and 3.8-liter V6 engine conspire to deliver awful fuel mileage. Also selling rather slowly are the Jeep Liberty and Dodge Nitro, which are assembled at the same plant in Northwest-Ohio. In an effort to save costs, Chrysler officials are considering reducing the work-week at the Toledo plant from the normal five days down to four and allowing its workers to stay on for ten-hour shifts. While that total still equals the forty-hours from a five-day, eight-hour per day work-week, Chrysler believes it can save on energy and fuel costs by shuttering the plant for an extra day.