The biggest problem I had was removing the screws holding the rotors on, but that was before I checked the forum to determine that I needed to use my 1/4" impact to remove them. They literally came right off when I used it.
My bud and I broke two impact bits trying to get those two screws off the rotors on one of the discs. The rest came off OK with some good pounding.
*yes, they were cheap bits...