Ford 9 in. 31 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:5.43:1 acceleration is more responsive

acceleration is more responsive

Almost 10% larger that stock intermediate piston

These aluminum push-in breathers from Speedmaster are just the thing to prevent oil splash while adding some style

further improve durability to make this heavy duty race the best option available for the TH400

Ford 9 in. 31 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:5.43:1 acceleration is more responsiveSpeedmaster Ford 9 in. third member assemblies are designed to help you get that horsepower to the ground. They include high quality nodular iron thru bolt design center section, as well as our famous TorqueWorm geared limited slip differential, 1350 series yoke, daytona pinion support, and gear ratio. Whether you're assembling a daily driver, street rod, or race car, Speedamster's third member assemblies will provide the durability that your vehicle