2000 Disco with 100K miles. No front end work to my knowledge. Factory tyres and my ball joint test did not disclose any play. At times, braking will turn the left wheel dramatically, and at other times, she brakes straight and true. She now likes to hunt at times, and my question is: how much should the steering wheel move without the tyres moving? Any thoughts on the brake issue, and the steering issue? Thank you.