Ford 9 in. 28 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:3.25:1 Speedmaster's 4-inch polished idler pulley

Speedmaster's 4-inch polished idler pulley is built for supercharger systems

while giving accurate measurements on your oil capacity

and are precision coated with red

Internally the coil also has large gauge wire windings for maximum spark current and voltage with better heat dissipation at high rpm

this safety lock bracket reinforces the engine's stability

Ford 9 in. 28 Spline LSD TorqueWorm® Nodular Iron Third Member Assembly Ratio:3.25:1 Speedmaster's 4-inch polished idler pulleySpeedmaster 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