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131 0212 Bank08 Z

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To get maximum performance from the Banks Brake on automatic-transmission-equipped trucks you'll want to buy the optional Banks SmartLock transmission controller ($395). This unit works with the factory powertrain controller to lock up the torque-converter clutch in all four gears and to increase transmission line pressure whenever the Banks Brake is activated. It not only improves the performance of the brake, it also decreases transmission temperatures by limiting the amount of transmission slippage during hill descents.