replacing 4-spd pedals with auto pedal.

Yes, you can do it if it not a Heavy Duty style clutch pedal assembly, HD has a bigger bushing in it, standard clutch pedal is the same size busing, might be a little tight up there to get it out, but just pull the C clip and remove the pedals, and re install new pedal. That being said, it's not a very hard procedure to take the pedal assembly out, you dont need to remove the master cylinder to do it, just unbolt the brake push rod, and drop the whole thing, just send the old clutch pedal assembly to me, and your all done LOL! Should be about a 20 minute job, pretty simple.

Jeff