GM Turbo 400 TH400 8620 Steel Output Shaft - Standard Length [Mechanical Speedo] Front motor plates swaps the

Front motor plates swaps the vibration associated with traditional motor mounts for solid mounting

The Billet Aluminum Drum wtih Extra Large sprag utilizes OEM intermediate frictions & steels

Speedmaster finned aluminum valve covers feature a classic raised

and chrome fittings

yet require less horsepower to turn

GM Turbo 400 TH400 8620 Steel Output Shaft - Standard Length [Mechanical Speedo] Front motor plates swaps theSpeedmaster one piece 8620 Steel output shafts are the perfect upgrade to improve the performance of your automatic transmission. These durable output shafts can withstand power level increases in high horsepower vehicles.