97 Chevrolet Z71 Suspension Problem?

I have a Chevrolet 1500 Z71 and have a problem with the wheel jerking. When going in a curve to the right the right tire or something jerks in turn makes the steering wheel jerk. This is a problem because if not paying attention it jerks enough to make the truck very erratic on steering. It dosent do it when making left curves, and also I noticed that it especially does it when in a long curve. If any one has any suggestions what this could be and about how much this would run to repair, your help would be appreciated. Thanks.

mine did this and it ended up being a leaking power steering hose and it was causing air to get into the system and also run low on fluid...

Check your ball joints

A common prob. is the steering sensor.
If you search the forum you will find part #
and detailed replacement instr.