Very soon I will be replacing spring plate bushings and installing larger torsion bars. I have Wil Ferch's
911 Spring Plate Angle Calculator. For rear 29mm bars, 2650# weight and euro height, the angle is 22-23 degrees with 6.93" Droop. I understand the idea of the initial installation angle being 22-23 degrees hanging freely, but what does 6.93" Droop mean and how do you measure it.