Mine is a TKO 600, supposed to be rated to 600 foot pounds, I hope so as my engine is just about that. Don't think I could ever get traction to really test it though. I bought mine from Kiesler, after dealing with their customer service I'm not surprised at the bankruptcy. Try Modern Driveline, Bruce deals with Ford mostly but will help you with any make. He helped me after failed attempts to get help from Keisler.
