Mike, you will need to separate the ZF; I just remember this was damn hard, everything was stuck....But the shifter fork is secured inside the shifter box by 2 "grub" screws--using maybe ~4-5mm allen wrench screws that access thru the small rubber grommets on the top of the shifter box. The pin that held the rear of the yoke is still stuck for my car, I think others have noted that the hardened pin just gets harder if you try drilling on it...Since the adjustment on the front was also stuck (had to take it to a machinist who put huge amounts of heat on it, its bathed really well in anti-sieze now and I think I located a new giant fine-pitch nut.). But I may have taken the U-joint apart to get the engine out of the car.
I actually thought adjusting the shifter was not difficult on re-assembly. If you can't punch out the pin, and are going to try and drill, get some amazing drill bit and make sure its cutting...Lee
