Originally Posted by MikeyV

I supported the crank shaft and used a 15mm socket and a vice. I put the 15mm socket over the end of the pin and placed that and the threaded end of the pin (bolt still on but flush with the end of the thread) into the vice. cranked on the vice for a while and finally it POPPED. That sweet sound when the pin finally released was amazing. This method took me about 1 minute on the non-drive side and both cotter pins are in perfect condition still. No mushrooming from hammering.