Dave, I'm using 15" smoothies so I don't know about originals, but I can tell you there was no grinding tie rods with this kit
I did have to grind the top of the bump stop off slightly, took all but 1 minute and also the nut on the kingpin key that holds it in. No biggie. It all booted right up.
But, my question was still about drilling a second hole closer to hub for cotter pin?