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This TH400 Billet Aluminum Direct Drum is manufactured specifically for drag racing classes including Pro-Street
Steel Mounting Stud Included
or working on your current shifter assembly
Convert any one-piece GM TH400 case into a two-piece case with our Speedmaster TH400 case adapter
Put together your own custom exhaust system with these Speedmaster collector reducers
Ford C4 Transmission Performance 8 Pinion 2.20 Ratio First Gear Planetary Gear Set This TH400 Billet Aluminum DirectSpeedmaster offers the maximum strength 8 pinion planetary gearset. Our 2. 20 gearset are assembled with Torrington bearings to replace the factory spec thrust washers, which reduces the friction, heat, and stress that the planetary gearset is subject to.
