Truck pulls hard to the left... and sometimes right

So I have a 2007 DCSB, the first mod I did was 5100's w/beach springs set at 0. Then I went with 4.5" bs rims on stock tires and it rode great, no pulling no shakes or anything, then started shaking, found out it was u bolts and fixed them and shake was gone. About 2 months ago someone hit me in a parking lot on the front left side only doing about 10mph, only damage I could see was my bumper, but as I drove it, it pulled to the left. Got an alignement and went away for the most part but was progressively getting worse. About 2 weeks ago I put some 32" tires on and had them balanced and aligned. The mechanic told me it was out of alignement and he corrected it. As I started driving I noticed it pulls to the left harder than ever and if I make u turns it sometimes pulls to the right. And the faster I drive the more my truck doesn't want to drive straight, it's become a chore now to drive it. What should I do? I have a warranty on the alignement for 3 months, but I have a feeling that not the issue, could something be bent or broken from my accident that's causing all this? Any advice would be greatly appreciated.

 

Possibly something was bent. Did it do it before? Might need aftermarket UCA's to compensate for the lack of caster with lift.

 

More than likely that one or more of your front suspension and/or steering components are bent. Get ahold of a diagram of the front end and see what the weakest link looks to be. Of course focus on the area that you were hit. Sounds like that's the root cause of your problem. Good luck.