Jimm 11/18/2012Usually, the shaking while applying brake pedal pressure indicates worn or warped brake rotors. Time to replace or at least have them resurfaced - if there is enough material (thickness) remaining. This is not an uncommon problem, and fortunately the brake rotors are not expensive.
When replacing the brake rotors, go ahead and replace the wheel bearings and the grease seals, as well - at the same time. The front brake rotors are around $16.00 each, and the wheel bearings are around $42.00 each. The wheel seals are around $4.00 each - for your vehicle. Source: www.rockauto.com for the repalcement parts.