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I recently replaced all ball joints [...] first thing i noticed was the steering wheel off by about 45°. Car tracks down the road nicely, however a bit twitchy. I asked him when i picked it up if i should get an alignment. He said not necessary. The inside of both tires now have worn considerably after only 50 miles.
I see you have already learned how good his advice was.Quote:
This is something, (alignment) i have not studied.
Excellent-- I highly recommend that approach! 
The only other choice is the school of hard knocks. Most of us have tried both, and often been pleasantly surprised at what we wish we'd learned by reading about it first. Google might keep you occupied for a few days... or even better, find a copy of Stockel's Auto Mechanics Fundamentals-- used on Amazon, probably a few dollars. I have a 1969 edition and a 1990 edition, just out of curiosity to see how much has changed-- either one describes caster, camber, and toe in a few short pages. (Point being, almost any year will work for what you want to know.)Yes, all of those are adjustable on your car, though only within narrow limits. Assuming good parts, a competent shop should be able to make the car feel like new-- the twitchiness is almost certainly related to toe-in.
The challenge is finding a shop with a Graybeard working there... if the young kids pushing buttons on the alignment rack have never seen anything other than Hondas, they won't have a clue how to adjust anything other than toe. Seriously, it won't take you more than a few hours of reading, to know more than many alignment dudes. Find a place that specializes in antiques or classics, and you'll have a car that feels surprisingly enjoyable to drive. These Chrysler designs were far ahead of their time, so don't let anyone tell you that twitchy is ok.
- Erik