Originally Posted by JDS539
is there a kit that I can buy to unlock the torque converter that does not require me to open up , remove the pan, I see in the catalogs that one is sold that fits into the brake system- this 700r4 came out of a carb car- all the kits I see talk about a computer- and if I am correct this car did not use a computer to run the trans- this streetrod I am building is a 'driver" w/ only a 250 hp sb eng- I just want to drive it 70 mph on the freeway and not have a manual switch to unlock the trans- my wife will want to drive it and u know how that will go
There are kits that have instructions to lock/unlock the converter externally using the 4th gear pressure port on the passenger side of the trans. I think some just use the brake light switch to disengage lockup. Doing it this way, when the trans shifts to 4th it sends pressure to the passenger side port with the added pressure switch which sends a signal to Pin A on the driverside electrical plug and engages/disengages the TCC/TorqueConvertorClutch. hen the trans downshifts out of 4th it will also cut the signal and disengage the TCC. Here's 1 link to a cheap kit but it doesn't include a vacuum switch.
With this kit you just add/use your own wire. Very simple & cheap. Only locks the TCC in 4th gear. If it doesn't work when connected you'll need to get a 2 wire N.O./NormallyOpen TC solenoid. The TC solenoid does mount inside the trans pan in the bottom right side of the pump.