This is probably a stupid question, but did you push the caliper piston back into its original position? If not, there is no way that new pads would fit without rubbing. I am not trying to offend or start anything by asking a stupid question, I was just curious.
03 Predator w/ TrailTech X-bars & clamp, WB slip-on, custom K&N intake, Edelbrock carb
06 Raptor, Houser +2 A-arms, LSR +4 axle, FMF PowerBomb Header w/ Two Bros slip on, ProDesign K&N intake kit, TrailTech X-bars, clamp & Vapor computer, PC III USB