[gowser]

I have a 350TH out of a 1982 Caprice and on the left side there is a electrial connection with 2 wires coming from it that were cut off. The second tranny does not have the electrical fitting or a spot to put one. Everything else looks the same. I an not sure of the year of the second tranny. Thanks GOWSER

[joshp83]

the plug is for a lock up torque converter used from 80 up the trans is almost the same it had a few internal diffrences u can ise a non lock up trans in a lock up with out a problem
being a full size car it should be a 350 c some small cars had a 250 wich looked the same but had a band adjustment and is a weak trans

[gowser]

Thanks joshp83. If I use the tranny from the 82 with the lockup connection do I need to hook it to anything or just leave it cut off? How will I know if it is locked or unlocked before it goes into the car? Thanks GOWSER

[Ruthlessmr]

is it a 350 or 700r4
not using the lock up can make it build more heat

[joshp83]

it will run hotter on flat land at a steady 60mphg or higher but not overheat the early 700s would up to 84 im in located in wva its very hilly here lockups dont work good in small engines on hills and mountains they dont lock up if no volts are run to them if its locked up it has a enternal issue if u run on the high way u can put a switch on it to activate it

[cobalt327]

Originally Posted by gowser

Thanks joshp83. If I use the tranny from the 82 with the lockup connection do I need to hook it to anything or just leave it cut off? How will I know if it is locked or unlocked before it goes into the car? Thanks GOWSER

The default position is unlocked- it takes 12 volts to engage the lock up torque converter, so unless you hook up the electrical connector it's unlocked.

Not using the lock up will increase the cruise rpm a couple hundred rpm and the mileage will be a tick worse, otherwise there's no harm in running it unlocked. But hooking it up is relatively easy. There's quite a few threads on this here and elsewhere.

To be on the extra safe side, install an auxiliary cooler.