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Per... It is hard to describe and picture in your head so dont feel bad... Imagine a line drawn connecting the upper and lower ball joints... factory spec is 4deg caster which means that line is 4 deg off true vertical with the lower ball joint in front. now if you lower it.. regardless of what you do with the rear, both arms are moved CCW and then the upper ball joint moves forward and the lower rearward...this reduces the caster or even makes it negative. Remember that these changes are slight but make a big difference. To imgine it in your mind imagine big changes in the rotation of the arms and you can picture its effects on the caster angle. Keith ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org