Just now getting around to posting a report on my tranny that Smokin' Diesel Performance did for me. It is everything I hoped for and more. Shifts smooth while cruising and locks up tight when I'm floggin' it. Held up to my first truck pull...broke my front driveshaft though. No intermittent quirks either. My boss has a ATS built tranny and after riding in my truck he hates the way his shifts. He's gonna have them build his next one. HIGHLY recommend their work. They are reasonably priced too. Was only $3,500 installed out the door. Got around 7,000 miles on it with no issues so far.