You can either grind or file the mushroom off of one side of the pin, and pop it out with a pin punch.
While in park, just punch out the drift pin with an awl and it will pop up-there is a spring inside.
Remove the slide. Push firing pin forward with 1/16" pin punch & then put a 3/32" pin punch between the back end of the firing pin & the back of the slot in the slide to hold the firing pin forward. Place the end of a small straight tip screwdriver between the right side end of the safety & the interior wall of the slide. Now twist the screwdriver to move the safety out to the left side of the slide. As you do this slowly, be carefull not to let the safety plunger & spring fly away on you. Mine tends to pretty well stay in the hole & not fly out. Once you have the safety out of the slide, carefully remove the 3/32" pin punch holding the firing pin forward to allow removal of the firing pin & spring. Reverse the procedure to reinstall.
you must drive the roll pin out where the line goes into the slave cylinder its a real small pin. can use a small punch or nail to remove.
Take it to a gunsmith. Remove cylinder - remove firing pin pin located under rear site - use finishing nail/small center punch ,place against back of firing pin and tap lightly driving pin toward "removed" cylinder
try using a heavy dose of wd40 and a center punch to try and free up the pin
Assuming that it is anautomatic And it's just the shifter that you want, at the bottom of the shifter by the steering column there is a pin. Take a punch and drive the pin out.
You simply push the small pin(roll-pin) through the housing with a small punch or Alan key...don't loose the pin when it falls out.
i guess your talking about a top loader remove the boot then remove the cover and you will find a pin holding the shifter to the trans. take a punch or pliers to remove the pin takes about 3min.
Most cotter pins are bent at one end and a loop at the other. You have to straighten the bent ends and grab the other end with a pare of vice grips and pull . If it will not come out you may have to brake off the end of cotter pin and punch it out with a fine punch (some times you can use a small nail).
Field strip the weapon down to the bolt and bolt carrier and then use a steel punch to drive out the firing pin retainer pin on the back edge of the bolt. The firing pin and firing pin rebound spring will drop out into your hand. To reverse that, put the bolt face down on a table and force the firing pin/spring forward into the slot to allow the retainer pin to be replaced. Reassemble weapon as usual.
An extremely hard one. I would be tempted to drive it out with a very hard pin punch.