They are automatic locking hubs and it's a straight axle set up. I pulled almost everything off inside but i still i can't figure out what else needs to come off in order to take the rotor off. Any help would be great....I also have another question..I'm going to be buying a new truck soon and i want it to be a powerstroke. I know that the 7.3L is bullet proof and there are a lot of things i can do to it but I've found a couple 6.0L that are nice and pretty cheap. I was wondering what the pros and cons to having a 6.0L Powerstroke over a 7.3L. Like what all can i do the 6.0. My friend told me that i can do a lot but they like to blowup so i was wondering how i could avoid that or is it a manufaction defect. any input is appreciated. Thank you in advance for the help.