JET 700-R4 Lock-Up Delay Modules

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These simple plug-in modules prevent converter clutch lock-up until 4th gear to stop unwanted locking/unlocking in 2nd and 3rd gears and dramatically increase converter life.

561-700211 enables the lock-up torque converter to be used in non-computer applications. Its vacuum switch unlocks the converter clutch under high engine load to increase torque multiplication.