J.W. Performance flexplate adapter kits are designed to fit your engine's crankshaft and allow for the use of a GM TH400, TH350, or a Powerglide transmission. They are ideal for drag race, Circle Track, or other forms of motorsports that relies heavily on automatic transmissions. Components are made from steel and include the longer Grade 8 mounting bolts to install your new flexplate. Order the adapter kit designed to fit your application.

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