tcc clutch brake switch connection
 

Ok trying to find out how to hook up the tcc pin #33 on the blue connector to the brake switch on my 92 s10. I haven't done it yet and I do notice the trans still engaged and downshifting as I slow down. How do I connect it to my brake switch? Also my reverse lights don't turn on when I'm in reverse which is no surprise since I did the swap. How do I connect that as well?

Let me clearly state that I don't know for sure.

There will be switch on your brake pedal or linkage. It typically has one wire going to the fuse box for +12V and the other goes to the brake lights.
Looking at the schematic for some other GM vehicles, your PCM simply splices into the wire going to the brake lights.