Rear brakes are the same. Front brakes are the same calipers and spindle. And to swap, you'll also have to swap axles in the back (or the whole rear end) and front hubs.
If you currently have 9" rear brakes and the 92 has 10" rear brakes, you can swap the backing plates and you're set to upgrade to 10" rear brakes (all parts are available new but the backing plates! Hint: Get them media blasted and painted or powder coated before you put them back on. Also, since you have to pull the axles to do that, do a fluid change in the diff.)
There's a middle 60's Chrysler disc brake that would be better to swap on; alas, I'm not sure which year which body exactly.