Stall convertors for the 904

I absolutely would not choose Ultimate, the first converter in my car was purchased from them, it leaked from the initial start up.......pulled trans and put a new pump seal in it thinking how could a brand new converter be the problem???? Still leaked the same, pulled trans again and put new pump bushing in it and decided while it was out to pressurize the converter with air and leak check it with soapy water........had 2 pin holes where the input hub was welded on which obviously means he doesn't leak check them before leaving his shop. To make matters worse I also noticed a couple crack on the base of the input hub and sent the converter back to him and he called me and told me that he thought he was getting a 1 piece hub from his vendor but instead it was a 2 piece so he was going to get a true 1 piece from another vendor. All good and fine except that he charged me for the new hub because of his choice of vendors and that should have been resolved between him and his vendor, not my fault. I mean I already had to pull the trans twice, plus the cost of fluid and so forth. That was my experience and after getting a great converter with great customer service from A1 I will use nobody else from this point on.


Really.. your the ONLY person I ever heard having a problem with Ultimate..I;ve been using his converter for 6 seasons no issues what so ever..know several racers who use them too..