Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:5.83:1 Does Not Include Rods/Brackets/Stick

Does Not Include Rods/Brackets/Stick

and will fit in most standard OEM brackets

An internal divider optimizes flow distribution to all ports of the manifold by reducing turbulence

Designed for use with 1-1/8" diameter

and sludge

Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:5.83:1 Does Not Include Rods/Brackets/StickSpeedmaster 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.