swap info
some 1 ton rears came with the small brakes on them most were big 13" dia thes wont work . wont clear the bell of the dully rim. if you have the smaller you might just need to change studs for longer but not 100% sure on the axle flange widths. dont forget the dully lug nut plates that gm runs for the rims. with the front like info from above, swap just the rotor hub assbly, rotors are diff in mounting hole dia. , need sfw rotors for srw need drw rotors for drw, if 2x4 front swap the hub rotor combo just the same. all brake barts are the same srw to drw. just face that wheel sits on is spaced out more.