More likely to be a lubrication problem in the steering shaft ujoint or rack, or deteriorating tie rod ends, ball joints, or wheel bearings. Is it worse while turning one way compared to the other when driving, or does it grind even if you steer it when stopped?
Any leaks? PS fluid level OK? How many miles, and has it ever been treated to a new belt?
Any leaks? PS fluid level OK? How many miles, and has it ever been treated to a new belt?