that will only cause massive tire wear, it can't induce a pull. An Alignment may be required but toe being off just wears your tires down, if the toe is off the geometry of the steering system will cause the steering to center itself if only toe is a problem. If camber/caster was off from one side to the other is how a pull is educed through an alignment problem. If I was a betting man I would say the toe is off causing bad tire wear which can cause high spots in the tire which will put a pull/drift in the vehicle.
Prime cause of that is your toe being out. Get an alignment.
When I was having problems while braking it was because my front hubs were warped (0.020" from low to high spot) causing the rotors to warp really bad with caused bad vibrations and it steered itself while braking.
The jerking wheel sounds like something might be loose.
Was the car wrecked at any point, specifically a front impact to one side.
98.5 t-red Zetec mtx
207,000 and counting
i love bring my car into class, it give a new "special circumstance" every day.