I am a new member, but have been reading for several months. I have a 2003 Z71 Tahoe with 69000 miles. I have just replaced front and rear shocks, Front rotors, front pads, and front calipers. whenever I go over bumps, there is a high pitched squeek that comes from the front left of the vehicle. Does anyone know what could be the source of this squeek. I am thinking maybe the sway bar, or possibly the bearings in the control arms. I am getting the vehicle aligned in the morning, and know that one of my torsion bars is a little off. It may be my imagination, but the front left seems to be sagging where the other three corners look great. I am also considering replacing the transmission filter, and fluid. Is this recommended? Any help would be greatly appreciated.