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Speedmaster aluminum adapter spacers allow you to adapt Powerglide to Turbo TH400 automatic transmission tailhousing
Speedmaster billet main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores
down leg boosters
Slim line design for when space is at a premium
They feature extra-thick steel that's double-welded to the ring gear for added strength and anodized for corrosion resistance
GM TH400 Turbo 400 Transmission Billet Aluminum Direct Drum Only Speedmaster aluminum adapter spacers allowThis TH400 7075 T6 Billet Aluminum Direct Drum is manufactured specifically for drag racing. Includes a Billet aluminum piston. Drum weights 55% less than the OEM drum.
US$ 229.50
US$ 212.50
US$ 397.50
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