Pulling to the right/Rack n Pinion steering?

[BradO]

My 3 was aligned and running fine for the last 6 months/5000 miles. My H3 started pulling to the right a week or two before i tore up the CV and front diff. I got that stuff fixed and had my Toyo M/T 35in tires (T BAR, 2 TURNS) rotated and balanced (Treads and care) and the vehicle aligned at the Hummer dealership. It was still pulling to right. Brought it back in this morning and rode with a tech. He said the pull had to be the tires, Toyo M/T with 5000 miles on them. I explained that i just had them balanced and had the rear tires moved up front. The pull was occuring prior to the alignment with the tires that are now on the rear. Took him for his word though and went back to Treads and Care tire for them to check the alignment/balancing. They went through and said the alignment was out, but it still pulling to the right. They swapped tires across from left to right as well, same pull to the right. They (Treads and care) think it's something bent in the rack and pinion steering. They checked the frame, tie rods, tires, etc. and said everything looked perfect. Called the dealership back and asked what they thought. They said it's unlikely to be the rack and pinion steering. But they didn't have any other ideas except to try to align again and look again underneath. Treads and care seems to at least have an idea, but Hummer seems to think otherwise. Any ideas what might be causing the issue?