TCC wire connection on 83

[Siggy]

doing a 5.3 swap in my 83 using psi harness can't figure out which wire to tie into on my brake switch for the TCC wire to make the torque converter to work correctly?

 

[RoryH19]

You can't find the cable in the harness or you need to know where on the brake switch to connect to?

 

[TPISly-C10]

on mine since i have allready OD trans 700R4 it was easy to connect my TCC wire for my new 4L80E but you can find at the junkyard or maybe new a brake switch from a suburban/blazer/crew cab until 91

in fact you need a brake switch with 2 connection: one goes on when you push the brake for brake light and one goes off to desangage the tork!