Another Q for Hyundaitech

I can't get my XG300 aligned. The right rear camber is -1.7 degrees and the front casters are both 2.2 degrees. They replaced the rear control arm but no joy. According to the shop, there's no adjustment
on either. I've been fighting the right rear camber for 3 years. Now it seems to have gotten really bad. Hyundai's "expert" is some gal who takes info and confuses it. I like my car but I can't keep putting rubber on ever 20K miles because they're dangerously worn.
What do I do next?
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I'd say stop worrying about caster and camber if these are your readings.
Spec on front caster is 2.25 to 4.25 deg. As far as I'm concerned, your readings are within spec. In addition, this will not affect tire wear.
Spec on rear camber is 0 to 1.0 degrees. So you're indeed out of spec, and I think you're pushing the area where you may develop some additional wear on the inside edges of the rear tires, but rotating your tires every 7500 miles or so should keep this to where the additional wear is nearly imperceptible.
If you really are wearing out your tires every 20k, these the readings you've given me aren't the issue. Either the tires just aren't made to have much longer tread life, or you have alignment issues (typically toe-in) beyond what you've posted here. Toe is the most critical angle in regard to tire wear.
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I use sticky tires so I only expect 40K. The last ones went from 98K to 118K. And, yes, since the last alignment there was some toe error. BUT the point I wanted to emphasize, in more detail, is that the front left and right rear tires were so badly worn they were down to the cord while the middle and outside of the tires were down to 4/10ths inch on all the other areas. According to the tire shop, they won't warrant the tires cuz of the the rear being more than 1-degree out.
And they say that's unadjustable. But nobody''s offered me a remedy.
I don't know what to do to get the back in. As an aside, everyone who looks at it says, "has this car been wrecked?" But it hasn't and according to the shops, they've never seen a car so far out that has NOT be wrecked. How would you fix such an issue--or who would you turn to?
On Mon, 9 May 2011 21:01:13 -0700 (PDT), hyundaitech

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First, caster will not affect treadlife. So that's not the cause of your front tire wear.
The rear tire on the other hand, if that was the wheel that had the camber out of spec, could potentially be caused by the camber issue. In such a case, you should see the tire worn almost on an even slant, not all the wear on the inner edge and the rest of the tire about even. Also note that your camber is *not* out by a degree.
And again, I'd fix the symptom, not the cause. Rotating your tires regularly should keep the wear minimal. Since you're using "sticky" tires, you might rotate every 5000 rather than 7500 miles.
If you feel you really must solve the issue, the way to do it is with a shim. If this shop does not know how to install a shim, then they really have no business claiming to be able to do alignments. In this case, you'd simply loosen the bolts holding the rear wheel hub in question onto the knuckle, and insert a of appropriate thickness between the bottom half of the hub and the knuckle. You should expect to pay a fair amount of additional labor for this, as it will require significant additional work as compared to just an alignment. This is standard procedure for a vehicle where nothing can be found to be bent.
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On Thu, 12 May 2011 00:35:14 -0700 (PDT), hyundaitech

Maybe I'm a dolt but I gotta get it fixed. I really like my XG300L and have taken pretty good care of it. That big red splotch on the alignment sheet just won't let me leave it alone. The dealers who "couldn't" fix it were Advance Hyundai in Mesquite and the original dealer, Huffines Hyundai in Plano.
I really admire you, incidentally. I am absolutely mechanically inept. So I'm at the mercy of others. When it comes to a 500kW HF transmitter for, say, the Voice of America, I'm your guy; transmitters talk to me the way cars talk to you. I can "see" the problem quickly and when I'm done they work right. But mechanical stuff defies me. The last time I did some plumbing, we lost the front room ceiling. A man has got to know his limitations.
Thank you so much for taking the time to answer my question. You've been so kind to so many people on here that saying thanks doesn't seem like enough. But it'll have to do for now. Cheers.
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It would be helpful to describe your specific issue rather than saying "Another Q for ..... "Another Q" doesn't communicate. Thanks.

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