Steering shakes and pulls left when braking??????

When I brake my steering shakes and pulls to the leftt?

I have 9in drum brakes, replaced the shoes, drums and hardware. Worked fine for the first couple of weeks but then started shaking and pulling hard to the left. I'm thinking that maybe the brake cylinder is seized? Any suggestions? Its my everyday driver so need to figured out and get it fixed please help!?

Did you replace the wheel cylinders?