Universal Chevy Ford Six Groove Billet Serpentine Alternator Pulley [Black] The 8-pinion rear planetary carrier

The 8-pinion rear planetary carrier is made from 4340 steel

Their strong die-cast aluminum design ensures an excellent gasket seal and dissipates heat better than many other covers

They're made of thick steel for reduced flex and are chrome plated for that show-car look

For manual transmissions

It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs

Universal Chevy Ford Six Groove Billet Serpentine Alternator Pulley [Black] The 8-pinion rear planetary carrierSpeedmaster alternator pulleys are manufactured from quality materials to ensure strength and durability. They are designed to ensure belt retention at high rpm.