08 RCSB Z71. Each time my truck gets raised up on a rack with the wheels off the ground,the steering wheel does not return centered like before being raised up.Moved both front and rear bumpers up and down to try to make sure suspension is completely settled.Also drove at least 100 miles to make sure everything settled back to normal with no luck.After having front end aligned,the steering wheel stays centered fine until it gets raised up again.Anyone ever have this happen?Any help with an answer would be greatly appreciated.Thanks

 

Sounds like something is loose or worn, but that would show up during the alignment. How far off center is the wheel?

 

17000 miles.not far off center,but just will not center back up.everything seemed to be okay during each alignment by tech guy(GM).

 

Also forgot to mention that we did not check the tightness of the steering rack.Any thoughts on maybe a possible loose steering rack?I am at a total loss on this?Thought there might be some great gm tech guys on here with some previous problems like this.Any and all suggestions or help would be greatly appreciated.Thanks.