The new clevis is 1/4 UNF and the stock s280 is M6. There aren’t enough threads nor deep enough on the turbosmart 1/4 clevis to fit the s280 1/4 rod. I have no problem mating these in the shop, just a bit curious if I have the wrong parts or something. This isn’t a bolt on situation at all. And not everyone can tap drill stainless easily.