The disk is the same size, the caliper is
where the extra power comes from, you
can get just the caliper and backing plates,
or the rotors too, 4 door rotors are vented
2 door rotors are solid
As for the rear, the drums and shoes are
bigger, I'm not sure about the backing plates
on those, but to be safe grab them, won't hurt
to have them. The 2 door backing plates will
work with the front disk swap, but they need
a little tweeking with a 10-12" crescent wrench,
(what I did) but for a no hastle install, grab the plates
Wild
