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This Speedmaster 300M steel crank gear
which is welded to the pickup box
making them a great choice for your disc brake conversion
solving issues associated with the weak pressed steel plate bases
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.
