That blog is the other method I read ALL over the place. The string method seems much less common and quicker.

I will probably still get a professional alignment but after I replace the uppers and put in new lower ball joints. But the pull I had is gone and gas milage is up. So its better than before.

At the very least, its a good way to get things close so one does not destroy tires on the way to getting an alignment after some major DIY work.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car