Are you trying to remove the ball joint just from the spindle or from the control arm as well? To free it from the spindle, just need some patience. To get it from the control arm you will need a press. I've seen specific ball joint c-clamp style hand presses which let you leave the arms attached to the frame, but there are plenty if people who just use a fixture on either a standing hydraulic or an arbor press, which you need to remove the arm from the truck. Specifically the ball joint set up on these trucks are an awful pain to change so alot of the time, new control arms are just bought with the joint already pressed in as well as new bushings. I know rockauto has em for a pretty decent price.
