GM TH400 Forged Center Support W/ Billet Oversized Intermediate Piston Speedmaster planetary gear sets are

Speedmaster planetary gear sets are available in long and short versions

Speedmaster power steering pumps are direct replacements for your old used-up OEM pump

extending the life of the crankshaft and bearings for enhanced power and torque

Speedmaster alternator pulleys are manufactured from quality materials to ensure strength and durability

Bronze gears absorb the increased wear in special cams and magnetos and are easily replaced before costly damage to the camshaft gear occurs

GM TH400 Forged Center Support W/ Billet Oversized Intermediate Piston Speedmaster planetary gear sets areIf your TH400 transmission is being used in high power applications, you'll need to look at every area of the transmission to boost your performance. It is highly recommended for competition applications.