steering

I have a problem with my steering, and I can't seem to pinpoint what the problem is. You see whats happenin is when I am driving down the road i'll take a slight corner to the right(only happens when i turn right)the wheel seems to fall... or jerk to the right. I got pittman arm replaced, steering box replaced, and ball joints checked.. Still doin it!!! If someone has had this problem, and had it fixed, please give me any info you can to help.. thanks much.. email is [email protected]
crazychevyboy