There are obviously many different "Chrysler 904" applications. Therein lies the danger of a fits all product. There is no way these things are engineered in any way close to fitting a V8 904 transmission in a stock early A body. Summit Racing knows this and is the ONLY vendor that publishes a disclaimer. Probably due to a history of customer dissatisfaction. Their advice pretty much says modified and racing applications only. When I was shopping, Summit was out of stock. If they had had one available I would have checked out the product information more thoroughly and would have passed. We all have enough challenges building/restoring Mopars without having to f*** around modifying a trans dipstick tube.