i will say it again SOLID AXLE theres no way to get diffent caster readings side to side unless you twist the axle
In fact, you can without having twisted the housing traumatically...
Recall that steel is often used in structures because it is "plastic" - in an engineering sense. This means:
- That it may be deformed - up to a certain amount (the "yield point") - and recover its original shape fully.
- That it may be deformed by either great or (relatively) small forces
- That, if you have adjustments in more than one point and you're not careful about adjusting them both the same, you
can indeed twist the axle housing without realising it (or just thinking that the threads on the adjuster don't mate quite right, or that they're under stress from the install and not being misadjusted WRT the other side, or ...)
Bear in mind that you may be a master tech with 15 years' experience, but that doesn't mean that the OP is in the same situation - he may be good with a wrench, but may not know from what with a situation like this.
OP - what's the caster differences? Have you had it measured on a rack? (You can measure it in the driveway, but there's an inherent inaccuracy when you're using that sort of thing. "Measure with a micrometer. Mark with chalk. Cut with an ax.")
Also, have you measured the centre-to-centre distance on your new adjustable control arms? You want it as close to identical on both sides as possible (within the limitations of measurement, of course. If you've only got a rule that measures by 1/32", that's the best you can do. You get that idea.) You may or may not find your caster error there - but it's a good place to start looking (basic troubleshooting - "What's changed?" Always the first question you should ask...)
