Patent ID: 7273434

Claim:
A transmission brake for electronically controlled automatic transmissions having electronic controlled manifold in which the automatic transmission is locked by engagement in both drive and reverse gears simultaneously comprises, a control transmission module to be positioned within an existing transmission valve body, said control transmission module comprises, a control body, a shuttle valve element movably positioned within a valve chamber in said control body from a first non-activation position to a second activation position, a plurality of fluid inlet and outlet control portals defining “from” and “to” reverse and drive gear pathways in communication with said valve chamber, an activation solenoid having a needle valve in operable communication with said valve chamber, multiple fluid ports in said control body in registered communication with said electronic control manifold in selected ports therein, a remote momentary transmission brake activation switch for selective electric activation of said solenoid and an electrically connected pressure switch in communication with an over drive fluid control portal pathway with a source of electrical power remotely of said transmission brake.