Flexplate Adapters

J.W. Performance Flexplate Adapter Kits

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're ideal for drag race, Circle Track, or other forms of motorsports that rely 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 recommended for your application.

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