Do you mean warped brake rotors? Yes, that's a fairly common problem. Here's a recent thread here about a possible fix:
www.4x4wire.com/forums/showflat.php?Cat=0&Number=1162763


Jeff
2000 4Runner SR5, supercharger, rear e-locker, ARB front locker, 285/75R16 MT/R's, custom bumpers & skids
2007 Tacoma double cab 4x4 - stock