TCI TH400 Valve Body Performance Improver Kit ' 66 and Newer 2010295 The Stage has comfortable ergonomic

The Stage has comfortable ergonomic shoulder straps and padded back

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TCI TH400 Valve Body Performance Improver Kit ' 66 and Newer 2010295 The Stage has comfortable ergonomic66 '91 TH400 Valve Body Improvement Kit.. The TCI Valve Body Improvement Kit for TH400 provides an improvement in upshift firmness, and also comes with the seals and gaskets needed for the project. This value priced kit allows you to upgrade your transmission for improved performance in street, off road and towing applications. The Valve Body Performance Improvement Kit is designed to change the shift action to a more positive shift. Reduced shift