Ford 9 in. 4in. 40 Spline LSD TorqueWorm® HD Pro Third Member Assembly [3.70:1]


Product details

Speedmaster Ford 9 in. third member assemblies are designed to help you get that horsepower to the ground. They include aluminumn 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 deserves.