Yes you will preload it by screwing the pull stud into the clap until the needle just does move. This removes all the takeup and will make sure the pull stud movement is minimal when the drawbar pulls on it.


No mods to the tool holder. The threads are turned off the pull stud just enough so that the one in the tool holder hold it center and it does not catch on the threads in the holder. As for the rod you could make it as big as a half inch but I feel thats way overkill and I want some room to weld it. I will prob make it out of a 3/8 grade 8 bolt with the head turned off and weld it to the pull stud. The coolant hole would only be used as a guide to make the rod concentric while I weld it to the pull stud.