These converter lockup kits from Painless give you an inexpensive way to automatically lock up the torque converter in 4th gear, when retrofitting a GM 700R4 transmission into an early non-computer controlled vehicle. The kits include everything you need for an easy installation, and you don't even need a speed sensor!

Kit includes:

* Vacuum switch
* 4th gear pressure switch
* Brake switch
* Torque converter lock-up solenoid
* Wire harness
* New transmission pan gasket
* Mounting hardware