Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:3.00:1 thanks to its exceptional race-proven

thanks to its exceptional race-proven performance both on and off the track

Hot looks and smooth changes up and down the range help these sweet pieces of shifter technology put the fun back into your automatic

Speedmaster shifters designed to fit most 3 or 4-speed automatic transmissions

Small Block Chevy heads are available with Straight or Angled sparkplugs

Try using Speedmaster steel crankshaft pulleys to increase horsepower and reduce accessory drag

Ford 9 in. 31 Spline Spool Nodular Iron Third Member Assembly Ratio:3.00:1 thanks to its exceptional race-provenSpeedmaster 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.