Bump steer measurement is one of those things where you can get an idea of where you're at, easily. Or you can get precise data with specialized tooling.
For the quick and dirty method you can check toe at various ride heights and record the data. Any toe change would be "bump steer".
If you have the inclination and funding many circle track companies make bump steer gauges. We use Longacre but for no particular reason other than we have a few other Longacre products and they work well.
We have our A and G body dialed in nicely. To get it 80% correct helps a ton. 100% correct takes some effort but is worth it for how nicely the cars drive and respond.
ramey
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