Ford 9 in. 31 Spline LSD TorqueWorm® HD Case Third Member Assembly Ratio:3.00:1 The Surloc technology is an

The Surloc technology is an advanced interlocking design to guarantee a strong connection

They feature a sleek chrome finish with an aluminum housing and have a 120 amp capacity

These Speedmaster 3-step module selectors are designed for great versatility

It's a 3 wires TPS to suite 'D' shape shaft

It will smooth out the engine's idle

Ford 9 in. 31 Spline LSD TorqueWorm® HD Case Third Member Assembly Ratio:3.00:1 The Surloc technology is anSpeedmaster 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.