another disk swap ? im sorry

now this may not work … i think it will but im just double checking … im getting ready to do the rear disk swap from an egt … now normally the front rotors are bigger then the rear correct? now if i swapped just to rotors from the front could i use them as bigger rotors in the back ?

never mind … i asked my all knowing everything about cars friend ( the guy is a genuis i dunno why he drives a conquest tho) and he said its impossible because of the calipers