Actually, the 4wd actuator engages the transfercase, and engine vacuum engages the front axle. Make sure the u-joints are good and check CV joints. Also, check the rear shackles. Those are the steel items that bolt the leaf springs to the frame. These vehicles are known for them to rust and break.
Let me know what you find.
Wednesday, January 6th, 2010 AT 9:30 PM