Doors - Quick Release Hinges / Removable Doors

Info provided by Wheelie_Pete
To get the old factory pin out without a fuss, cut it in half as it sits in the hinge, then take a cold chisel and start tapping around the edge of the top of the pin. (The hinges should be removed from teh vehicle first.) This should start to pry the pin upwards, then, when you clear the swege marks on the pin you can just pull it out. Repeat for the bottom half.
If you manage to cut your hinges and then force out the stock pin without ˟˟˟˟ing up the brash bushing, then you can use a 5/16 (.3125") dia. x 2" long grip length pin perfectly. The stock door hinge bushings are 8mm (0.315" dia). My passanger's door hinges worked out this way and it works awesome! This works so well I can hardly believe it. The pin is upside down on the top hinge because there isn't enough room to drop it down through the top due to the shape of the door's edge. A sharp eye will notice that the lower bolt head on the door's half of the hinge is ground down. This is so you can clear the pin's shoulder by the bolt. It had to be done to get a straight up shot for the pin. Also when doing it this way you can retain the factory brass bushing which will keep the door tight and have that OEM fell. My driver's door's brass bushings in both hinges cracked when we tried to pull the stock pin so we had to drill them out to 3/8" and use a 3/8" Pin or bolt with the head ground down. This eventually wears on the hinges and Ifinally ended up replacing them with some I could use a 5/16 pin in.