Although the elaborate body shops have frame-straightening equipment, most don't - and send it out to specialists. Did yours do a frame alignment check before repair? Bent suspension members have transmitted some of the absorbed energy to the frame, and it should be tested on a jig, not just eyeballed. Another possibility is damaged subframe mounts - these are active parts of the suspension, but may be overlooked, or damage not noticed. Since the subframe is replaceable, damage there may not show on the frame jig.