I have an 01 GMC Z71. My rotors are shot so I figured I would take to oppertunity to upgrade my whole brake system, rotors and calipers. I am running 35x12.50 SSrs on 16x10 wheels I really need to increase my braking power due to the increased rotating mass. But because of the wheel size I can't run any of the big rotor upgrades that the street guys can. I am looking at Stainless Steel Brake Corp and Baer. Any other manufacturers I should be taking a look at? Do I need to install a proportioning valve when I do this and how will this affect my ABS? Also, If I go with a system that can't use the stock parking brake in the rear, what are my alternatives?