What is this tranny part?

[funkycold]

I am putting my new TCI tranny in and came across this part that is on it, and I am not sure what it is for. It is a lock-up tranny and my suburban already has the lock up wire harness in it. Is this a part that is for the lock-up for trucks without lock-up or for aftermarket lock-up? My previous transmissions do not have this part on them. Can I just remove this part and use my stock wire harness instead?

 

[big83chevy4x4]

i have not seen that before, but im guessing its for the lockup. that plugin is for lockup.

 

[funkycold]

That is kind of what I am thinking as well, but my subruban already has the lock up wire harness from the factory.

 

[m j]

looks like it may be a vacuum swith to unlock when you go WFO on the loud pedal
just a guess though

 

[funkycold]

I found it! I am going to take it off since my Suburban has the factory wiring harness.