Steering wheel wobble

[mcrich65]

Please help I stopped driving myy 89 suburban years ago and just recently just put her back on the road. I replaced the steering wheel gear box but and had the wheels aligned. But I'm still all over the road ......everyone I've talked to keeps tell me that even the rebuilted units are the same. So my question for the board is " is there a newer years that will work in its place, or if there is anything else I can do to fix this problem