Once we got the Jeep off the rock and into a level shaded place we started pulling the broken front axleshaft to remove the broken parts. To do this we removed the wheel and tire, caliper and rotor, and the three bolts that retain the unitbearing. Then the unitbearing and axleshaft were removed. Then the rest of the broken U-joint and inner axle was yanked. If our Jeep had locking hubs we could have just unlocked the hubs, shifted to 2WD and limped off the trail, but our CJ is more like a modern Jeep without locking hubs.