I have a Gear Vendors O.D. but not on my Super Duty. I have a 1982 F100 with a 351 Cleveland street truck. The engine is making over 500hp at the crank and I haven't had a stitch of problems with it. Even with slicks and launching off of a trans-brake, it holds up fine. I don't see any reason why it wouldn't hold up behind a stroker. They are expensive, but they stand behind their product. If you ever break it, they want it back and will sell you a new one for 1/4 the cost of new if its out of warranty.