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Take your GM TH400 transmission to the next level with this premium heavy duty forward drum and 300M input shaft combo
stainless steel alloy and are carefully designed to increase gas flow for more power
It is designed to hold the amount of oil that is needed to lubricate the engine when it is running
They are individually hand turned and pressure tested to exceed performance standards
Look not further
3/8 NPT Engine Coolant Temperature Sensor Take your GM TH400 transmissionSpeedmaster Powerjection EFI systems use a number of sensors. These sensors will typically last for extended periods, but there may come a time when your Powerjection system sensors need to be replaced. When they do, you can count on Speedmaster for coolant temperature sensors, oxygen sensors, throttle position sensors, and more that will fit perfectly and do the job that you expect. If you need to replace your sensors, do it with the originals from
