I have a 07 z71 tahoe 4x4 with a leveling kit and 285/65 nittos and 58k miles, for some reason there is this squeak that start when ever i get to about 5mph up to 25mph and it chirps ever second or so (irt, irt, irt, irt) it is coming somewhere under the car but i cant tell where, also when ever i put on the breaks lightly it seems to stop, idk if its my breaks or shocks or what, any help would be awsome, thanks guys.