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This Speedmaster 300M steel crank gear
Designed for C4 transmissions in competitive environments where RPM levels approach or exceed 8
Made from durable 16-gauge steel
Upgrade your transmission with the Speedmaster heavy-duty forward clutch hub
Speedmaster automatic transmission deep pans provide additional fluid capacity and cooling ability
GM Powerglide / TH400 Big Shaft Stator Tube Kit This Speedmaster 300M steel crankUpgrade your GM Powerglide or TH400 for extreme horsepower applications with this big shaft stator tube kit. Designed for use with 1 1 8" diameter, 35 spline input shafts, this heavy duty tube is ideal for high performance builds demanding maximum strength and durability.
