Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:5.83:1 but they also lengthen valvetrain

but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips

and will fit in most standard OEM brackets

This gives you the ability to run a much stronger and reliable transmission to your high performance engine

These polished

Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:5.83:1 but they also lengthen valvetrainSpeedmaster 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 a forged chromoly steel spool, 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.