My 2007 Chevy Malibu with 68,000 miles has been shaking when I brake. I had gotten new brake pads and my rotors resurfaced when the shaking began. I took my car back in to the mechanic whom stated that it could be shaking due to the fact that the rotors were hot and it was raining so he resurfaced them for free. After a few days I felt the shaking begin again. It shakes really bad when I slow from speeds over 35 mph, once I have slowed to 35 mph the shakes stops. My car did not shake before he resurfaced my rotors, so I am wondering what the problem is so that I can address it and get it fixed.