ATS 6019002326 68RFE Transmission ControllerThis electronic 68RFE transmission shifting control module increases the line pressure to improve shift firmness and duration. The less slippage of a transmission the longer it will live and the more performance it can give. Electronically increase the line pressure fixes the factory slush box shifting. It's a plug a play controller with the included 24 pin plug. Easy installation that can give your 68RFE a much longer life.