[Ross in East Texas]

In reality, by the time you have the shackles removed and the spring U-bolts off, the ball is all that is holding the front axle assembly in, you might as well pull it and get the axle out to finish the king pin bushing installation. If you don't have access to a king pin bushing reamer then I also would suggest that you get this done by a competent machine shop for a proper fit.