If you're looking for upgrade options, I'd go with either the Currie steering, or the Ultimate Currie Steering package from Savvy. The Ultimate steering from Savvy is the same as the regular Currie steering setup, it just has an indestructible tie-rod. As far as what's keeping your alignment from staying set, it's hard to tell without more info or hands on time. If you're guessing whether your tie-rod is bent or not, throw a straight edge on there to make sure. It can be deceiving if you just eyeball it.