that's common when changing vehicle height. the only way to correct it is with an adjustable track bar.
if you look at your factory track bar you'll see that it is not adjustable so when raising or lowering the axle is pulled to either the driver or passenger side depending on which way you went.
1. get an adjustable track bar.
2. hang a plumb bob from each rear fender
3. raise the rear axle off the ground.
4. adjust new track bar to center axle using plumb bobs as a reference.
5. tighten track bar jam-nuts and lower vehicle
I just did a quick Google search and here is an example. I'm sure you can find better prices if you shop around.