Ford 9 in. 31 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:5.43:1 Tune your rpm-activated control to

Tune your rpm-activated control to your application with one of these Speedmaster rpm module kits

e-brake and mounting assembly

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

These kits are specifically designed to deliver the performance you want

Ford 9 in. 31 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:5.43:1 Tune your rpm-activated control toSpeedmaster 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