Recently acquired a x475 AWS to replace my aging but still going strong 345. i need some help with a few questions. The 475 has a category 0 3 point rock shaft. and I have cat. 1 draft links does anyone have a cat.1 rock shaft they would take some measurements for me? i would like to modify the rock shaft to category 1. my main question is how far is the center of the lift eyes from the outside of the rock shaft.