Ford 9 in. 4in. 40 Spline Spool HD Pro Third Member Assembly Ratio:4.11:1 oil leaks and producing 50%

oil leaks and producing 50% more spark than stock

Grab one of these Speedmaster billet steel flywheels for the durability and performance that you demand

they feature a gold iridited finish for durability

These combinations start with a reliable Speedmaster 9

Ford 9 in. 4in. 40 Spline Spool HD Pro Third Member Assembly Ratio:4.11:1 oil leaks and producing 50%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 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.