1LE Rotors & HD Dual Piston Calipers

Does anyone know if they used different splindles for the 1LE package? I want to go with the dual piston front calipers and larger rotors, but I don't know if they will bolt onto the existing spindle. Any takers?

i would try baer brakes because they usally cover most gm cars.

i would try baer brakes because they usally cover most gm cars.

I appreciate the suggestion but I don't have an extra $1,200 laying around. I could get the 1LE calipers, rotors, and good pads for around $200, but I have a feeling the spindles are different.