I have a 2005 STI and for some reason it's making a really loud thumping sound whenever I drive. It thumps whenever I start to accelerate and whenever I start braking. My other car makes a clicking sound instead, and thats because of a broken axle. I was wondering if the thumping sound is because of a broken axle? As soon as I started driving the car hard, revving it really high and shifting, whenever I shifted, I heard an even louder thumping sound and my car jerked really bad. Can anyone help me out?