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It sounds like the toe-in may be off a bit, but more probably the caster angle. This is really not adjustable on a 240, although in the early 80's they moved to an asymmetric (side-to-side) ball joint to increase the caster angle, which improves 'self-centering' at road speeds. The newer BJ's are distinguished by the 'arm' to which the tire rod attaches being curved toward the front of the car, instead of being straight. This change also necessitated a change in the strut tube. Look in a Haynes manual to see the differences. In any case, to change from old to new style BJ's requires a change in the strut tube assembly - hardly worth the effort, in my book.
There's a good chance your A-arm took a beating in you off-road experience. Is this what you replaced? You could get a new one or under $100 from fcpgroton, or in a junkyard for probably $15. If you go that route, then you should also install fresh rear A-arm bushings on both sides. These need replacing at least every 100K miles (my second set is ready after 50K!), and are a major contributor to front end/steering ills. Also, balljoints are not expensive and are relatively easy to change. I suggest you do them as well when you get under the car next.
Lastly, go to a QUALITY steering/alignment shop for an alignment after changing front end parts... stay away from tire stores and nationwide chains (Sears, Midas, etc.).
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