I haven't had braking issues with mine, I don't know. The truck actually stops very well even with 35s.
Mostly the dust pisses me off, it is unreal how much of a mess they make. The rotors are also rusty and have quite a lip on them, causing a little squeal occasionally when I'm moving slowly and not on the brakes. My mechanic re-surfaces the rear discs and put on some cheapo pads (without permission) and there is a little less noise but I want to replace everything with new before long.
I would bet that the newer brakes wouldn't be a huge deal to swap. But judging from the clearance I have, there is no way I could fit 17s (which I would like) with brakes that are even a hair bigger than mine.
2006 F150 FX4 Super Crew - Bilstien 5100s leveled 2", 35" KM2s, 4.56 gears, Detroit locker, Eaton E-Locker, Traction Bars, AEM intake, Xcal 2
2010 VW Golf TDI 6MT