If your having the r&p cryoed the warrenty will be null and void regardless of whos name is on the box. The cryo process changes the metalurgy, or whatever ya call it, it makes the gears more pliable, and less likely to shear, shatter, or crack.
I have broken the ring gear teeth off of 2 yukon r&p sets. I went with a reboxed cryo replacement in the rear. I'm shure I will find out how strong they are eventually.