need help I am helping my neibor rebuild front end on A 80 3/4 TON f series truck the upper ball joint has A snap ring below the nut ? WHY can I just heat up the spindals and pound these joints out our do I need A press this front end is all new to me as I try to stick with general motors any help on how to pull spindals would be helpful thanks

Is this a 2WD or 4WD? You really need a ball joint press and the special adaptors for it. On a 2WD, you remove and replace the joints with the spindle on the axle. There is a correct sequence to do it. You need to find a source of service information. If it is a 4WD, the spindles sre pulled with a slide hammer.