Originally posted by HercMan:
As for 12" rotors you'll need new brackets to mount the calipers to. Many kits are available or you can piece it together from a certain range of F body's can't remember off hand right now.
Using stock calipers... Purchase some 12" rotors..... The brackets come of off other W-bodies that come with 12" brakes from the factory.. Like the Monte Carlo.
The F-Body brake upgrade is a 12" rotor with F-Body(aluminum 2 piston) Calipers/Brackets.... Some drilling required to make them work.
Oh, and I don't have 12" brakes, but I've got D/S rotors from Gripforce at Ebay... After 1 winter, they rusted up a bit, but seem to be cleaning up.... I only got them because they look good and a very reasonable price.... Sorry I don't have any performance observations about them.