GM TH400 Transmission Heavy Duty Straight Cut Planetary Gear 2.10 - 1.40 Ratio Designed for use with Speedmaster

Designed for use with Speedmaster air cleaners

They are installed between the water pump pulley and the drive flange

High-volume water pumps have a ribbed aluminum housing and a heavy duty ball/roller bearing assembly

Also includes:Tailgate SealLED Light

They come in many sizes to meet just about all of your needs

GM TH400 Transmission Heavy Duty Straight Cut Planetary Gear 2.10 - 1.40 Ratio Designed for use with SpeedmasterSpeedmaster planetary gear sets are ideal for modern big displacement engines. Speedmaster only offers planetary gear sets which provide superior torque output for modern high output motors. This planetary gear is fully Rollerized!