in my previous post about my 1965 Dodge Dart concerning my Super Stock leaf springs shackle issue to where the bottom of the shackles was facing towards the springs instead of facing towards down at an angle towards the rear bumper . I made reinforced extention blocks to fix the geometry issue and yes measurements where taken prior to this mod on the leaf springs and mounting brackets ect. I used 2 x 4 steel box tubing sections
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