Steering gear vs. alignment

I just got my Charger aligned yesterday and it still seems to dart from side to side. The gear is worn but I would think the car should still go down the road straight. My thought is that with a worn gear you have to turn the wheel farther to get any input which shouldn't affect whether the car tracks straight, just how much you have to turn the steering wheel to get the front wheels to turn. Any thoughts?

Hello, What were the final setting? You really want as much positive caster as you can get. Remember, these ol' Mopars had a hard time achieving enough positive caster. Also, your gear box might actually be too tightly adjusted. If someone has tried to take the "slop" out by tightening the sector adjuster, that will make for a terrible "wander". Alignment setting would (if not correct) make the car pull or drift to one side or the other, not so much fell like it "wanders" or darts side to side. Post the settings if you can. Take care, Jeff

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Also, your gear box might actually be too tightly adjusted. If someone has tried to take the "slop" out by tightening the sector adjuster, that will make for a terrible "wander".

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GREAT point. The steering box adjustment, if set too tight, will tend to "bind up" and when coupled with a meager factory setting of positive camber and 0 degrees of caster.... bad news on the road. Alignment techs with brains will set up the car how YOU want, but you have to tell them beforehand.
Mopar Action magazine had an article a few months back on how to improve your power steering system. The power steering in most classic Mopars is waaaaaay overboosted, and the article showed a way to reduce the pump pressure to a point where the pump provides just enough pressure to add assist without feeling like you are steering the tires on wet ice. You can see the article online. Its certainly worth reading.