I replaced the outer tie-rods and the upper control arms last year on advice from a mechanic. Then got it aligned, but still experienced some tire wear that I concluded to be associated with the inner tie-rods. So I replaced the inner tie-rods. Then got it aligned. Mechanic got everything in the 'green.' But it unmistakably pulled to the left. So I took it back in and everything was off so they aligned it again. Said they took it on the freeway and it tracked straight. They told me that I needed new torsion bars. I wasn't sure about it, but I figured I'd at least look into that. They said that the ride height wasn't where it was supposed to be. I don't need it level, but it's not hard to believe that it's sagging a bit at this point. They said they adjusted the torsion bars and it didn't respond like they expected it to. Anyway, by the time I got it home (around a mile away) it was pulling harder to the left than before. So I did a little bit of homework on the torsion bars. No one even sells them from what I see. ACDelco does't even list them when I look up parts (unless I'm missing it somehow). What I am seeing is upgraded torsion bar keys from ACDelco and Moog that allow more adjustment that factory keys to 'relieve fatigued torsion bars.' So that's kind of where I'm at. I'm also wondering what the odds are of the camber bolts not being (or staying) sufficiently tight. What are the odds? Anyway, sorry so long. Any thoughts would be appreciated. Thanks!