i need 12" brake upgrade help.

[kirkkarem1212]

this is a little hard to explain. here goes. i have a 2002 gtp. im doing a 12" brake upgrade. ive bought both front caliper brackets for a 02 monte ss for the new rotors. ok, heres where i need help. the rotor kit i bought comes with all four rotors, for a monte carlo. do i need new caliper brackets for the rear too? or will the stock grand prix ones work with monte rotors?

[The Guz]

Stock rears will work fine.

[03GTPLE]

yeah, should be the same size.

[kirkkarem1212]

thanks alot guys