TH400 Ultra Case 2 SFI

The Ultra Case 2 is the best TH400 transmission case JW Performance makes and is SFI approved. No longer do you have to be limited to using a powerglide transmission to get a high performance transmission case. The Ultra Case 2 now gives you the option of using the 3 speed TH400 and having a superior performance SFI approved aftermarket case as the foundation of your transmission.

The JW Turbo 400 Ultra case 2 is a SFI certified transmission case that replaces the stock case on high performance and racing TH400 transmissions. Many competition sanctioning bodies require a transmission shield or blanket in higher horsepower vehicles. The TH400 Ultra Case meets the SFI requirements while also providing a stronger case to handle the demands of high performance.