Also another issue is the ID of the rotor. My first intention was to bore the center of the rotor to fit the Warrior hub. Well doing that would have cut into the bolt holes. Instead I put the Warrior hub in the lathe and cut the flange down so the Raptor rotor would slip over it. The bolt circle on the Warrior hub is bigger so you have to slot the holes in the Raptor rotor .180" straight outwards. I did all the work with a used rotor, but also bought a new one so I would have a spare.
This is where getting an entire Raptor rear setup would be best. That way you can buy off the shelf parts without having to modify if you ruin a rotor. I am not 100% sure, but I believe the Warrior Caliper will bolt right up to the Raptor rear carrier. You have to eliminate the parking brake for sure because the tabs for the cable are at different angles and the Warrior cable mount will hit the carrier. I had already eliminated the parking brake so I just cut the cable mount off. I had done a cheap block off by just threading the original bracket and installing a pipe plug.